Gaya APA

Laufer, A, H, D, L, N, M, G, N. (2007). Current Diagnosis Dan Treatment Obstetrics Dan Gynecology . New york: Mc graw hill.

Gaya MLA

Laufer, Alan, H., DeCherney,, Lauren, Nathan,, Murphy, Goodwin,, Neri. "Current Diagnosis Dan Treatment Obstetrics Dan Gynecology". New york: Mc graw hill, 2007. Text.