Gaya APA

Gary, cuningham. (1997). WILLIAMS OBSTETRICS 3 : 21 ST EDITION . Amerika: MCgraw hill companies.

Gaya Chicago

Gary, cuningham. WILLIAMS OBSTETRICS 3 : 21 ST EDITION. Amerika: MCgraw hill companies, 1997. Text.

Gaya MLA

Gary, cuningham. WILLIAMS OBSTETRICS 3 : 21 ST EDITION. Amerika: MCgraw hill companies, 1997. Text.

Gaya Turabian

Gary, cuningham. WILLIAMS OBSTETRICS 3 : 21 ST EDITION. Amerika: MCgraw hill companies, 1997. Print.