Citazione Stile APA (7a Edizione)

Clarke, J. I., & Fisher, W. B. (1981). Population geography and the developing countries (1. ed., reprinted.). Pergamon Pr.

Citazione stile Chigago Style (17a edizione)

Clarke, John Innes, e W. B. Fisher. Population Geography and the Developing Countries. 1. ed., reprinted. Oxford [u.a.]: Pergamon Pr, 1981.

Citatione MLA (9a ed.)

Clarke, John Innes, e W. B. Fisher. Population Geography and the Developing Countries. 1. ed., reprinted. Pergamon Pr, 1981.