Cita APA (7a ed.)

Zimmer, J. (1997). Labor of love: Mothers share the joy of childbirth. Wiley.

Cita Chicago Style (17a ed.)

Zimmer, Judith. Labor of Love: Mothers Share the Joy of Childbirth. New York: Wiley, 1997.

Cita MLA (8a ed.)

Zimmer, Judith. Labor of Love: Mothers Share the Joy of Childbirth. Wiley, 1997.