Tyrrell, G. (1946). The personality of man: New facts and their significance / by G.N.M. Tyrrell. Penguin Books.
Chicago-referens (17:e uppl.)Tyrrell, G.N.M. The Personality of Man: New Facts and Their Significance / by G.N.M. Tyrrell. Harmondsworth: Penguin Books, 1946.
MLA-referens (8:e uppl.)Tyrrell, G.N.M. The Personality of Man: New Facts and Their Significance / by G.N.M. Tyrrell. Penguin Books, 1946.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.