APA (7th ed.) Citation

Beck, W. W. (1986). Obstetrics and gynecology. JDIGIELECOM.

Chicago Style (17th ed.) Citation

Beck, William W. Obstetrics and Gynecology. Manila: JDIGIELECOM, 1986.

MLA (9th ed.) Citation

Beck, William W. Obstetrics and Gynecology. JDIGIELECOM, 1986.