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.
Lua i Stíl Chicago (17ú heag.)Keyfitz, Nathan, agus 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.
Lua MLA (9ú heag.)Keyfitz, Nathan, agus 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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.