Zimmer, J. (1997). Labor of love: Mothers share the joy of childbirth. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Zimmer, Judith. Labor of Love: Mothers Share the Joy of Childbirth. New York: John Wiley & Sons, 1997.
Lua MLA (9ú heag.)Zimmer, Judith. Labor of Love: Mothers Share the Joy of Childbirth. John Wiley & Sons, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.