APA
National conference on clays and clay minerals(6th: 1957 A., . (1959). Clay and clay minerals. Pergamon: London.
Chicago
National conference on clays and clay minerals(6th: 1957 Au, . 1959. Clay and clay minerals. Pergamon: London.
Harvard
National conference on clays and clay minerals(6th: 1957 A., . (1959). Clay and clay minerals. Pergamon: London.
MLA
National conference on clays and clay minerals(6th: 1957 Au, . Clay and clay minerals. Pergamon: London. 1959.