APA-viite (7. p.)

Ladd, E. C., & Bowman, K. H. (1999). Public opinion about abortion (2nd ed.). AEI Press.

Chicago-viite (17. p.)

Ladd, Everett Carll, ja Karlyn H. Bowman. Public Opinion About Abortion. 2nd ed. Washington, D.C.: AEI Press, 1999.

MLA-viite (9. p.)

Ladd, Everett Carll, ja Karlyn H. Bowman. Public Opinion About Abortion. 2nd ed. AEI Press, 1999.