SYMPHYSIA FROM PANAMAWILLIAMS LO.1972; PHYTOLOGIA; E.U.; DA. 1972; VOL. 24; NO 2; PP. 158Serial Issue

TROPICAL AMERICAN PLANTS. XVIIIWILLIAMS LO.1975; PHYTOLOGIA; E.U.; DA. 1975; VOL. 31; NO 6; PP. 435-447Article

A NEW MEXICAN MALAXISWILLIAMS LO.1975; PHYTOLOGIA; E.U.; DA. 1975; VOL. 32; NO 1; PP. 31-32Article

TROPICAL AMERICAN PLANTS, XIVWILLIAMS LO.1974; PHYTOLOGIA; E.U.; DA. 1974; VOL. 28; NO 3; PP. 225-232Article

RANDIAS FROM CENTRAL AMERICAWILLIAMS LO.1972; PHYTOLOGIA; E.U.; DA. 1972; VOL. 24; NO 2; PP. 159-163Serial Issue

L'IDROGENO; IL SUO RUOLO NEI SISTEMI ENERGETICI DEL FUTURA = HYDROGEN, ITS ROLE IN ENERGETIC SYSTEMS OF FUTURE = L'HYDROGENE, SON ROLE DANS LES SYSTEMES ENERGETIQUES DE L'AVENIRWILLIAMS LO.1981; FIS. TECHNOL.; ISSN 0391-9757; ITA; DA. 1981; VOL. 4; NO 2; PP. 125-132; BIBL. 5 REF.Article

THE AVOCADOS, A SYNOPSIS OF THE GENUS PERSEA, SUBG. PERSEA.WILLIAMS LO.1977; ECON. BOT.; U.S.A.; DA. 1977; VOL. 31; NO 3; PP. 315-320Article

ELECTROLYSIS OF SEA WATER.WILLIAMS LO.1975; IN: HYDROGEN ENERGY. HYDROGEN ECON. ENERGY CONF.; MIAMI BEACH, FLA.; 1974; NEW YORK; PLENUM PRESS; DA. 1975; PP. 417-424; BIBL. 6 REF.Conference Paper

A NEW COSTA RICAN CLIDEMIAWILLIAMS LO.1975; PHYTOLOGIA; E.U.; DA. 1975; VOL. 32; NO 3; PP. 286-287Serial Issue

HYDROGEN: ITS PLACE IN FUTURE ENERGY SYSTEMSWILLIAMS LO.1980; PHYS. TECHNOL.; ISSN 0305-4624; GBR; DA. 1980; VOL. 11; NO 5; PP. 181-186Article

EPLINGIA, A NEW GENUS OF THE LABIATAE FROM MEXICOWILLIAMS LO.1973; FIELDIANA, BOT.; U.S.A.; DA. 1973; VOL. 36; NO 3; PP. 17-20Serial Issue

BIGNONIACEAE OF TROPICAL NORTH AMERICAWILLIAMS LO.1973; FIELDIANA, BOT.; U.S.A.; DA. 1973; VOL. 36; NO 4; PP. 21-29Serial Issue

APPLICATION OF CENTRIFUGAL SEPARATION TO THE PRODUCTION OF HYDROGEN FROM COALWILLIAMS LO.1980; APPL. ENERGY; GBR; DA. 1980; VOL. 6; NO 1; PP. 63-70Article

TROPICAL AMERICAN PLANTS. XVIIWILLIAMS LO.1975; FIELDIANA. BOT.; U.S.A.; DA. 1975; VOL. 36; NO 10; PP. 77-110Serial Issue

SOME HELENIOID COMPOSITAE FROM CENTRAL AMERICAWILLIAMS LO.1974; PHYTOLOGIA; E.U.; DA. 1974; VOL. 29; NO 4; PP. 273-276Article

TROPICAL AMERICAN PLANTS. XIIIWILLIAMS LO.1973; PHYTOLOGIA; E.U.; DA. 1973; VOL. 25; NO 7; PP. 458-464Serial Issue

TROPICAL AMERICAN PLANTS. XIVWILLIAMS LO.1973; PHYTOLOGIA; E.U.; DA. 1973; VOL. 26; NO 2; PP. 127-130Serial Issue

TROPICAL AMERICAN PLANTS. XIIWILLIAMS LO.1972; FIELDIANA, BOT.; U.S.A.; DA. 1972; VOL. 34; NO 8; PP. 101-132Serial Issue

SOMMERA (RUBIACEAE) IN NORTH AMERICAWILLIAMS LO.1973; PHYTOLOGIA; E.U.; DA. 1973; VOL. 26; NO 2; PP. 121-126Serial Issue

FLORA OF GUATEMALA. IXSTANDLEY PC; WILLIAMS LO.1973; FIELDIANA, BOT.; U.S.A.; DA. 1973; VOL. 24; NO 3-4; PP. 237-418; BIBL. DISSEM.Serial Issue

FLORA OF GUATEMALA. IXSTANDLEY PS; WILLIAMS LO.1970; FIELDIANA, BOT.; U.S.A.; DA. 1970; VOL. 24; NO 1-2; PP. 1-236; BIBL. DISSEM.Serial Issue

FLORA OF GUATEMALA. VERNONIEAE, ASTEREAE, INULAE, HELIANTHEAE, ANTHEMIDEAE, CYNAREAE, MUTISIEAE, CICHORIEAE. EUPATORIEAE, HELENIEAE, SENECIONEAE.NASH DL; WILLIAMS LO.1976; FIELDIANA, BOT.; U.S.A.; DA. 1976; VOL. 24; NO 12; PP. (613P.)Serial Issue

A STORAGE TANK FOR VEHICULAR STORAGE OF LIQUID HYDROGENWILLIAMS LO; SPOND DE.1980; APPL. ENERGY; GBR; DA. 1980; VOL. 6; NO 2; PP. 99-112; BIBL. 3 REF.Article

FLORA OF GUATEMALASTANDLEY PC; WILLIAMS LO.1975; FIELDIANA, BOT.; U.S.A.; DA. 1975; VOL. 24; NO 1-3; PP. (281P.)Serial Issue

HYDRAZINE/MATERIAL COMPATIBILITYWILLIAMS LO; ANSELMI RT; NEISWANDER DW et al.1975; IN: AM. INST. AERONAUT. ASTRONAUT.-SOC. AUTOMOT. ENG. PROPUL. CONF. 11; ANAHEIM, CALIF.; 1975; NEW YORK; A.I.A.A.; DA. 1975; VOL. 1245; PP. 1-4; BIBL. 6 REF.Conference Paper