APA
National Conference on Clays and Clay Minerals(3rd: 1954 O., . (1955). Clays and clay minerals. National Academy of Sciences: Washington.
Chicago
National Conference on Clays and Clay Minerals(3rd: 1954 Oc, . 1955. Clays and clay minerals. National Academy of Sciences: Washington.
Harvard
National Conference on Clays and Clay Minerals(3rd: 1954 O., . (1955). Clays and clay minerals. National Academy of Sciences: Washington.
MLA
National Conference on Clays and Clay Minerals(3rd: 1954 Oc, . Clays and clay minerals. National Academy of Sciences: Washington. 1955.