APA (7th ed.) Citation

Portinaro, P., & Knirsch, F. (1987). The cartography of North America, 1500-1800. Facts on File.

Chicago Style (17th ed.) Citation

Portinaro, Pierluigi, and Franco Knirsch. The Cartography of North America, 1500-1800. New York: Facts on File, 1987.

MLA (9th ed.) Citation

Portinaro, Pierluigi, and Franco Knirsch. The Cartography of North America, 1500-1800. Facts on File, 1987.