Cita APA

Hunt, C. B. (1974). Natural regions of tye United States and Canada. San Francisco: W.W. Freeman.

Citación estilo Chicago

Hunt, Charles B. Natural Regions of Tye United States and Canada. San Francisco: W.W. Freeman, 1974.

Cita MLA

Hunt, Charles B. Natural Regions of Tye United States and Canada. San Francisco: W.W. Freeman, 1974.