Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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