Παραπομπή APA

Siegel, J. S. (2004). The methods and materials of demography (2. ed.). San Diego, Calif. [u.a.].

Παραπομπή Chicago Style

Siegel, Jacob S. The Methods and Materials of Demography. 2. ed. San Diego, Calif. [u.a.], 2004.

Παραπομπή MLA

Siegel, Jacob S. The Methods and Materials of Demography. 2. ed. San Diego, Calif. [u.a.], 2004.