Cita APA (7a ed.)

Harold, F. M. (1986). The vital force: A study of bioenergetics. Freeman.

Cita Chicago Style (17a ed.)

Harold, Franklin M. The Vital Force: A Study of Bioenergetics. New York: Freeman, 1986.

Cita MLA (8a ed.)

Harold, Franklin M. The Vital Force: A Study of Bioenergetics. Freeman, 1986.