Cita APA (7a ed.)

Hildebrand, W. (1974). North America: Introducing the continent. Holt, Rinehart and Winston.

Cita Chicago Style (17a ed.)

Hildebrand, William. North America: Introducing the Continent. Toronto: Holt, Rinehart and Winston, 1974.

Cita MLA (9a ed.)

Hildebrand, William. North America: Introducing the Continent. Holt, Rinehart and Winston, 1974.