Siegel, J. S. (2004). The methods and materials of demography (2. ed.). San Diego, Calif. [u.a.].
Chicago Style aipamenaSiegel, Jacob S. The Methods and Materials of Demography. 2. ed. San Diego, Calif. [u.a.], 2004.
MLA aipamenaSiegel, Jacob S. The Methods and Materials of Demography. 2. ed. San Diego, Calif. [u.a.], 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.