Styl cytowania APA

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

Styl cytowania Chicago

Tapinos, Georges P., i Phyllis T. Piotrow. Six Billion People: Demographic Dilemmas and World Politics. New York: McGraw-Hill, 1978.

Styl cytowania MLA

Tapinos, Georges P., i Phyllis T. Piotrow. Six Billion People: Demographic Dilemmas and World Politics. McGraw-Hill, 1978.