APA (7th ed.) Citation

Green, G. R. (1933). Trees of North America: (exclusive of Mexico). Edwards Brothers.

Chicago Style (17th ed.) Citation

Green, George Rex. Trees of North America: (exclusive of Mexico). Ann Arbor, Mich.: Edwards Brothers, 1933.

MLA (9th ed.) Citation

Green, George Rex. Trees of North America: (exclusive of Mexico). Edwards Brothers, 1933.