Citazione Stile APA (7a Edizione)

Harrison, P., & Rowley, J. (1984). Human numbers, human needs. International Planned Parenthood Federation.

Citazione stile Chigago Style (17a edizione)

Harrison, Paul, e John Rowley. Human Numbers, Human Needs. London: International Planned Parenthood Federation, 1984.

Citatione MLA (9a ed.)

Harrison, Paul, e John Rowley. Human Numbers, Human Needs. International Planned Parenthood Federation, 1984.