PRE-METAZOAN EVOLUTION AND THE ORIGINS OF THE METAZOA.CLOUD PE JR.1968; EVOLUTION.AND.ENVIRONMENT-YALE.UNIV.PRESS-U.S.A.; 1968, P. 1 A 72Miscellaneous

PROTEROZOIC STROMATOLITE ZONATION.CLOUD PE JR; SEMIKHATOV MA.1969; AMER. J. SCI.; USA; 1969(11), VOL. 267, NUM. 0009, P. 1017 A 1061Miscellaneous

MORPHOLOGICAL CRITERIA FOR BIOGEOCHEMICAL PROCESSES.(ABSTRACT).CLOUD PE JR; LICARI GR.1968; GEOL. SOC. AMER., ABSTR. PROGRAMS; USA; 1968(11)Miscellaneous

REPRODUCTIVE STRUCTURES AND TAXONOMIC AFFINITIES OF SOME NANNOFOSSILS FROM THE GUNFLINT IRON FORMATION.LICARI GR; CLOUD PE JR.1968; PROC. NATION. ACAD. SCI. U.S.A.; USA; 1968(4), VOL. 59, NUM. 0004, P. 1053 A 1060Miscellaneous