Cita APA (7a ed.)

Allen, E. v. N. (1943). Specialties in medical practice. T. Nelson and sons.

Cita Chicago Style (17a ed.)

Allen, Edgar van Nuys. Specialties in Medical Practice. New York, Edinburgh: T. Nelson and sons, 1943.

Cita MLA (8a ed.)

Allen, Edgar van Nuys. Specialties in Medical Practice. T. Nelson and sons, 1943.