Cita APA (7th ed.)

Keyfitz, N., & Murphy, E. M. (1964). Comparative demographic computations: Based on official (unadjusted) data for 69 selected countries and regions. Population Research and Training Center, University of Chicago.

Cita Chicago (17th ed.)

Keyfitz, Nathan, i Edmund M. Murphy. Comparative Demographic Computations: Based on Official (unadjusted) Data for 69 Selected Countries and Regions. Chicago: Population Research and Training Center, University of Chicago, 1964.

Cita MLA (9th ed.)

Keyfitz, Nathan, i Edmund M. Murphy. Comparative Demographic Computations: Based on Official (unadjusted) Data for 69 Selected Countries and Regions. Population Research and Training Center, University of Chicago, 1964.