APA (7e ed.) Bronvermelding

Não informado. (2009). Ob-Gyn Observer: The News Magazine of Obstetrics and Gynecology. [s.n.].

Chicago (17e ed.) Bronvermelding

Não informado. Ob-Gyn Observer: The News Magazine of Obstetrics and Gynecology. New York: [s.n.], 2009.

MLA (8e ed.) Bronvermelding

Não informado. Ob-Gyn Observer: The News Magazine of Obstetrics and Gynecology. [s.n.], 2009.

Let op: Deze citaties zijn niet altijd 100% accuraat.