Cita APA

Piotrow, P. T., & Piotrow, P. T. (1973). World population crisis; the United States response. New York, New York: Praeger.

Citación estilo Chicago

Piotrow, Phyllis Tilson, y Phyllis Tilson Piotrow. World Population Crisis; the United States Response. New York, New York: Praeger, 1973.

Cita MLA

Piotrow, Phyllis Tilson, y Phyllis Tilson Piotrow. World Population Crisis; the United States Response. New York, New York: Praeger, 1973.