Gaya APA

Macdonald, J, A, P, P, C. (1976). Williams Obstetrics Fifteenth Edition . New York: Appleton-Century-Crofts.

Gaya MLA

Macdonald, Jack, A., Pritchard,, Paul, C.. "Williams Obstetrics Fifteenth Edition". New York: Appleton-Century-Crofts, 1976. Koleksi Cetak.