Cita APA (7th ed.)

Sanders, R. C. (1985). The Principles and Practice of Ultrasonography in Obstetrics and Gynecology (3.ed.). Appleton-Century-Crofts.

Cita Chicago (17th ed.)

Sanders, Roger C. The Principles and Practice of Ultrasonography in Obstetrics and Gynecology. 3.ed. Connecticut: Appleton-Century-Crofts, 1985.

Cita MLA (9th ed.)

Sanders, Roger C. The Principles and Practice of Ultrasonography in Obstetrics and Gynecology. 3.ed. Appleton-Century-Crofts, 1985.