Cita APA

Johnson, S. 1., & Johnson, S. 1. (1987). World population and the United Nations: Challenge and response. Nueva York: Columbia University.

Citación estilo Chicago

Johnson, Stanley 1940-, y Stanley 1940- Johnson. World Population and the United Nations: Challenge and Response. Nueva York: Columbia University, 1987.

Cita MLA

Johnson, Stanley 1940-, y Stanley 1940- Johnson. World Population and the United Nations: Challenge and Response. Nueva York: Columbia University, 1987.