Cita APA (7th ed.)

Egan, R. L. (1972). Mammography (2d ed.). Thomas.

Cita Chicago (17th ed.)

Egan, Robert L. Mammography. 2d ed. Springfield, Ill: Thomas, 1972.

Cita MLA (8th ed.)

Egan, Robert L. Mammography. 2d ed. Thomas, 1972.