Cita APA (7a ed.)

Morgan, W. L., Engel, G. L., & Engel, E. L. (1969). The clinical approach to the patient. Saunders.

Cita Chicago Style (17a ed.)

Morgan, William L., George L. Engel, y Evelyn Lipman Engel. The Clinical Approach to the Patient. Philadelphia [etc.]: Saunders, 1969.

Cita MLA (9a ed.)

Morgan, William L., et al. The Clinical Approach to the Patient. Saunders, 1969.