Citazione Stile APA (7a Edizione)

Trewartha, G. T., & Fisher, W. B. (1978). The more development realm: A geography of its population (1. ed.). Pergamon Pr.

Citazione stile Chigago Style (17a edizione)

Trewartha, Glenn T., e W. B. Fisher. The More Development Realm: A Geography of Its Population. 1. ed. Oxford [u.a.]: Pergamon Pr, 1978.

Citatione MLA (9a ed.)

Trewartha, Glenn T., e W. B. Fisher. The More Development Realm: A Geography of Its Population. 1. ed. Pergamon Pr, 1978.