APA (7th ed.) Citation

Zon, R., & Sparhawk, W. N. (1923). Forest resources of the world. McGraw-Hill.

Chicago Style (17th ed.) Citation

Zon, Raphael, and William N. Sparhawk. Forest Resources of the World. New York: McGraw-Hill, 1923.

MLA (8th ed.) Citation

Zon, Raphael, and William N. Sparhawk. Forest Resources of the World. McGraw-Hill, 1923.