APA-viite (7. p.)

Gale Group & Friedman, L. S. (2012). Endangered species. Greenhaven Press.

Chicago-viite (17. p.)

Gale Group ja Lauri S. Friedman. Endangered Species. Detroit, Mich: Greenhaven Press, 2012.

MLA-viite (8. p.)

Gale Group ja Lauri S. Friedman. Endangered Species. Greenhaven Press, 2012.