Cita APA (7a ed.)

Netter, F. H., & Oppenheimer, E. (1975). Digestive system ([2nd ed., 5th printing].). Ciba.

Cita Chicago Style (17a ed.)

Netter, Frank H., y Ernst Oppenheimer. Digestive System. [2nd ed., 5th printing]. Summit [New Jersey]: Ciba, 1975.

Cita MLA (9a ed.)

Netter, Frank H., y Ernst Oppenheimer. Digestive System. [2nd ed., 5th printing]. Ciba, 1975.