Cita APA (7a ed.)

Popper, H., & Becker, K. (1975). Collagen metabolism in the liver. Stratton Intercontinental Medical Book.

Cita Chicago Style (17a ed.)

Popper, Hans, y Klaus Becker. Collagen Metabolism in the Liver. New York: Stratton Intercontinental Medical Book, 1975.

Cita MLA (8a ed.)

Popper, Hans, y Klaus Becker. Collagen Metabolism in the Liver. Stratton Intercontinental Medical Book, 1975.