APA Citatie

Bradley, W. F., & Bailey, S. W. (1960). Clays and clay minerals: :Proceedings of the thirteenth national conference. Symposium publications division.

Chicago Style citaat

Bradley, W. F., en S. W. Bailey. Clays and Clay Minerals: :Proceedings of the Thirteenth National Conference. London: Symposium publications division, 1960.

MLA citatie

Bradley, W. F., en S. W. Bailey. Clays and Clay Minerals: :Proceedings of the Thirteenth National Conference. Symposium publications division, 1960.