Παραπομπή APA

Heer, D. M., & Grigsby, J. S. (1994). Society and population. Prentice hall of Indiaprivate limited.

Παραπομπή Chicago Style

Heer, David M., και Jill S. Grigsby. Society and Population. New Delhi: Prentice hall of Indiaprivate limited, 1994.

Παραπομπή MLA

Heer, David M., και Jill S. Grigsby. Society and Population. Prentice hall of Indiaprivate limited, 1994.