APA (7th ed.) Citation

Walling, R. (1980). When pregnancy is a problem. Abbey Press.

Chicago Style (17th ed.) Citation

Walling, Regis. When Pregnancy Is a Problem. St. Meinrad, Ind.: Abbey Press, 1980.

MLA (9th ed.) Citation

Walling, Regis. When Pregnancy Is a Problem. Abbey Press, 1980.

Warning: These citations may not always be 100% accurate.