Swineford, A., & Ingerson, E. (1963). Clays and clay minerals: :Proceedings of the tenth national conference on clays and clay minerals.v.12. Pergamon Press.
Dyfyniad Arddull ChicagoSwineford, Ada, and Earl Ingerson. Clays and Clay Minerals: :Proceedings of the Tenth National Conference on Clays and Clay Minerals.v.12. New York: Pergamon Press, 1963.
Dyfyniad MLASwineford, Ada, and Earl Ingerson. Clays and Clay Minerals: :Proceedings of the Tenth National Conference on Clays and Clay Minerals.v.12. Pergamon Press, 1963.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.