APA Style

F Gary Cunningham, Paul C MacDonald, Norman F Gant, et al. (). Williams obstetric, 20th ed . : s.l: Prentice-Hall Int\'l., 1997.

Chicago Style

F Gary Cunningham, Paul C MacDonald, Norman F Gant, et al. Williams obstetric, 20th ed. : s.l: Prentice-Hall Int\'l., 1997, . BOOKS.

MLA Style

F Gary Cunningham, Paul C MacDonald, Norman F Gant, et al. Williams obstetric, 20th ed. : s.l: Prentice-Hall Int\'l., 1997, . BOOKS.

Turabian Style

F Gary Cunningham, Paul C MacDonald, Norman F Gant, et al. Williams obstetric, 20th ed. : s.l: Prentice-Hall Int\'l., 1997, . BOOKS.