Cita APA (7a ed.)

Tapinos, G., Piotrow, P. T., & Morse, E. L. (1978). Six billion people: Demographic dilemmas and world politics. McGraw-Hill.

Cita Chicago Style (17a ed.)

Tapinos, Georges, Phyllis Tilson Piotrow, y Edward L. Morse. Six Billion People: Demographic Dilemmas and World Politics. New York: McGraw-Hill, 1978.

Cita MLA (9a ed.)

Tapinos, Georges, et al. Six Billion People: Demographic Dilemmas and World Politics. McGraw-Hill, 1978.