Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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