Cita APA (7th ed.)

Whistler, J. A. M. N. (1967). The gentle art of making enemies. Dover Publications.

Cita Chicago (17th ed.)

Whistler, James Abbott Mc Neill. The Gentle Art of Making Enemies. Nueva York: Dover Publications, 1967.

Cita MLA (9th ed.)

Whistler, James Abbott Mc Neill. The Gentle Art of Making Enemies. Dover Publications, 1967.