Cita APA (7a ed.)

Norman, A. W., & Litwack, G. (1997). Hormones (2nd ed.). Academic Press.

Cita Chicago Style (17a ed.)

Norman, A. W., y Gerald Litwack. Hormones. 2nd ed. San Diego: Academic Press, 1997.

Cita MLA (8a ed.)

Norman, A. W., y Gerald Litwack. Hormones. 2nd ed. Academic Press, 1997.