Cita APA (7th ed.)

Hoy, D. R., & Berry, L. (1980). Essentials of geography and development: Concepts and processes. Macmillan.

Cita Chicago (17th ed.)

Hoy, Don R., i Leonard Berry. Essentials of Geography and Development: Concepts and Processes. New York: Macmillan, 1980.

Cita MLA (9th ed.)

Hoy, Don R., i Leonard Berry. Essentials of Geography and Development: Concepts and Processes. Macmillan, 1980.