APA (7th ed.) Citation

Keyfitz, N. (1968). Introduction to the mathematics of population. Addison-Wesley Pub. Co.

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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