Dyfyniad APA

Geldard, F. A., & Geldard, F. A. (1962). Defence psychology: Proceedings of a symposium held in Paris, 1960. Pergamon.

Dyfyniad Arddull Chicago

Geldard, Frank A., and Frank A. Geldard. Defence Psychology: Proceedings of a Symposium Held in Paris, 1960. Oxford, New York: Pergamon, 1962.

Dyfyniad MLA

Geldard, Frank A., and Frank A. Geldard. Defence Psychology: Proceedings of a Symposium Held in Paris, 1960. Pergamon, 1962.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.