Cita APA (7a ed.)

Langer, S. E., & Scheer, J. F. (1987). How to win at weight loss: Eat well and lose weight naturally. Thorsons.

Cita Chicago Style (17a ed.)

Langer, Stephen E., y James F. Scheer. How to Win at Weight Loss: Eat Well and Lose Weight Naturally. Wellingborough [etc.]: Thorsons, 1987.

Cita MLA (9a ed.)

Langer, Stephen E., y James F. Scheer. How to Win at Weight Loss: Eat Well and Lose Weight Naturally. Thorsons, 1987.