INTERSTRATIFIED ILLITIC CLAY IN ORDOVICIAN ASH FROM CONWAY,NORTH WALES.BALL DF.1968; CLAY MINER.; GBR; 1968(7), VOL. 7, NUM. 0003, P. 363 A 366Miscellaneous

BASALUMINITE FROM CAMBRIAN ROCKS NEAR HARLECH.BALL DF.1969; MINERAL. MAG.; GBR; 1969(6), VOL. 37, NUM. 0286, P. 291 A 292Miscellaneous

LAMB WAVES FOR INSPECTION OF COMMERCIALLY ROLLED HOT STRIP MATERIALBALL DF; SHEWRING D.1976; NON-DESTRUCT. TESTG; G.B.; DA. 1976; VOL. 9; NO 1; PP. 13-15; BIBL. 2 REF.Article

GRID SAMPLING AND AIR PHOTOGRAPHY IN UPLAND SOIL MAPPING. AN INVESTIGATION IN THE RHINOG MOUNTAINS OF NORTH WALES.MEW G; BALL DF.1972; GEOGR. J.; GBR; 1972, VOL. 138, NUM. 0001, P. 8 A 14Miscellaneous

SEDENTARY KAOLINITIC SOIL ON THE CARBONIFEROUS LIMESTONE SERIES IN ANGLESSEY.BALL DF; MEW G.1968; GEOL. J.; GBR; 1968, VOL. 6, NUM. 0001, P. 1 A 6Miscellaneous

RECENT GROUND PATTERN PHENOMENA IN THE RHINOG MOUNTAINS, NORTH WALES.GOODIER R; BALL DF.1969; GEOGR. ANN., A; SWE; 1969, VOL. 51, NUM. 0003, P. 121 A 126Miscellaneous

THE UK PROCESS PLANT CONTRACTING INDUSTRYSHELDON IM; COCKERILL TAJ; BALL DF et al.1982; IND. CHEM. BULL.; ISSN 511528; GBR; DA. 1982; VOL. 1; NO 4; PP. 116-124; BIBL. 17 REF.Article

A MODEL FOR STUDYING SOME ORGANIZATIONAL EFFECTS OF AN INCREASE IN THE SIZE OF R & D PROJECTSPEARSON AW; GREEN T; BALL DF et al.1979; I.E.E.E. TRANS. ENGNG MANAG.; USA; DA. 1979; VOL. 26; NO 1; PP. 14-21; BIBL. 5 REF.Article

IMPROVING PERCEPTIONS OF HEALTH AND SAFETY NEEDS IN INDUSTRYBUTLER J; BALL DF; PEARSON AW et al.1978; CHEM. AND INDUSTRY; GBR; DA. 1978; NO 20; PP. 798-802; BIBL. 8 REF.Article

SOME MEASUREMENTS OF AIR QUALITY IN GARAGES SPECIALISING IN THE UNDERSEALING OF MOTOR VEHICLES.BALL DF; CLARK J; ENNIS J et al.1977; J. OCCUP. ACCID.; NETHERL.; DA. 1977; VOL. 1; NO 3; PP. 237-244; BIBL. 5 REF.Article

ECOLOGICAL STUDIES ON THE PORTON RANGES: RELATIONSHIPS BETWEEN VEGETATION, SOILS AND LAND-USE HISTORY.WELLS TCE; SHEAIL J; BALL DF et al.1976; J. ECOL.; G.B.; DA. 1976; VOL. 64; NO 2; PP. 589-626; H.T. 5; BIBL. 1 P. 1/2Article