APA (7th ed.) Citation

Vachell, H. A. (1928). Men are so selfish! (First American edition.). G.P. Putnam's Sons.

Chicago Style (17th ed.) Citation

Vachell, Horace Annesley. Men Are so Selfish! First American edition. New York ; London: G.P. Putnam's Sons, 1928.

MLA (9th ed.) Citation

Vachell, Horace Annesley. Men Are so Selfish! First American edition. G.P. Putnam's Sons, 1928.