Cita APA (7th ed.)

Ankerberg, J., & Weldon, J. (1989). When does life begin?: And 39 other tough questions about abortion. Wolgemuth & Hyatt.

Cita Chicago (17th ed.)

Ankerberg, John, i John Weldon. When Does Life Begin?: And 39 Other Tough Questions About Abortion. Brentwood, Tenn.: Wolgemuth & Hyatt, 1989.

Cita MLA (9th ed.)

Ankerberg, John, i John Weldon. When Does Life Begin?: And 39 Other Tough Questions About Abortion. Wolgemuth & Hyatt, 1989.