Cita APA (7a ed.)

Trewartha, G. T. (1978). The More developed realm: A geography of its population. Pergamon Press.

Cita Chicago Style (17a ed.)

Trewartha, Glenn Thomas. The More Developed Realm: A Geography of Its Population. Oxford ; New York: Pergamon Press, 1978.

Cita MLA (8a ed.)

Trewartha, Glenn Thomas. The More Developed Realm: A Geography of Its Population. Pergamon Press, 1978.