Cita APA (7a ed.)

Van Ness, M. M., & Gurney, M. S. (1989). Handbook of gastrointestinal drug therapy. Little, Brown.

Cita Chicago Style (17a ed.)

Van Ness, Michael M., y Michael S. Gurney. Handbook of Gastrointestinal Drug Therapy. Boston, MA: Little, Brown, 1989.

Cita MLA (9a ed.)

Van Ness, Michael M., y Michael S. Gurney. Handbook of Gastrointestinal Drug Therapy. Little, Brown, 1989.