APA aipamena

Keyfitz, N. (1968). Introduction to the Mathematics of Population. Addison Wesley Pub Co.

Chicago Style aipamena

Keyfitz, Nathan. Introduction to the Mathematics of Population. London: Addison Wesley Pub Co, 1968.

MLA aipamena

Keyfitz, Nathan. Introduction to the Mathematics of Population. Addison Wesley Pub Co, 1968.