APA (7th ed.) Citation

United States. Department of the Interior. (1966). The population challenge: What it means to America.

Chicago Style (17th ed.) Citation

United States. Department of the Interior. The Population Challenge: What It Means to America. 1966.

MLA (9th ed.) Citation

United States. Department of the Interior. The Population Challenge: What It Means to America. 1966.

Warning: These citations may not always be 100% accurate.