APA (7e ed.) Bronvermelding

Keyfitz, N. (1968). World population: An analysis of vital data. University of Chicago Pr..

Chicago (17e ed.) Bronvermelding

Keyfitz, Nathan. World Population: An Analysis of Vital Data. Chicago: University of Chicago Pr., 1968.

MLA (9e ed.) Bronvermelding

Keyfitz, Nathan. World Population: An Analysis of Vital Data. University of Chicago Pr., 1968.

Let op: Deze citaties zijn niet altijd 100% accuraat.