Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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