APA (7th ed.) Citation

Smith, G. H. (1950). Conservation of natural resources (of the United States). Wiley.

Chicago Style (17th ed.) Citation

Smith, Guy Harold. Conservation of Natural Resources (of the United States). N.Y.: Wiley, 1950.

MLA (8th ed.) Citation

Smith, Guy Harold. Conservation of Natural Resources (of the United States). Wiley, 1950.