MLA

Niehans, Paul, and Walter Michel. Introduction a La Cellulothérapie. Cellorgan: Clarens, 1974.

APA

Niehans, P., & Michel, W. (1974). Introduction a la cellulothérapie. Cellorgan: Clarens.

Chicago

Niehans, Paul, and Walter Michel. Introduction a La Cellulothérapie. Cellorgan: Clarens, 1974.