APA aipamena

Spiegelman, M. (1968). Introduction to demography (Revised edition.). Harvard University Press.

Chicago Style aipamena

Spiegelman, Mortimer. Introduction to Demography. Revised edition. Cambridge: Harvard University Press, 1968.

MLA aipamena

Spiegelman, Mortimer. Introduction to Demography. Revised edition. Harvard University Press, 1968.