APA-referens (7:e uppl.)

Heer, D. (1978). Society and population (2nd.). Prentice Hall.

Chicago-referens (17:e uppl.)

Heer, David. Society and Population. 2nd. New Delhi: Prentice Hall, 1978.

MLA-referens (9:e uppl.)

Heer, David. Society and Population. 2nd. Prentice Hall, 1978.