APA-referens

Cross, W., & Florio, C. (1978). You are never too old to learn. New York: McGraw-Hill.

Chicago-stil citat

Cross, Wilbur., and Carol Florio. You Are Never Too Old to Learn. New York: McGraw-Hill, 1978.

MLA-referens

Cross, Wilbur., and Carol Florio. You Are Never Too Old to Learn. New York: McGraw-Hill, 1978.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.