Cita APA (7a ed.)

Dunlop, S., & MacDonald, D. (1986). North America: A new geography (1. publ., reprinted.). Heinemann.

Cita Chicago Style (17a ed.)

Dunlop, Stewart, y Donald MacDonald. North America: A New Geography. 1. publ., reprinted. London: Heinemann, 1986.

Cita MLA (9a ed.)

Dunlop, Stewart, y Donald MacDonald. North America: A New Geography. 1. publ., reprinted. Heinemann, 1986.