APA (7th ed.) Citation

Salopek, P. A. Selected characteristics of travel to work in 20 metropolitan areas, 1977. U.S. Dept. of Commerce, Bureau of the Census.

Chicago Style (17th ed.) Citation

Salopek, Phillip A. Selected Characteristics of Travel to Work in 20 Metropolitan Areas, 1977. [Washington, D.C.?]: U.S. Dept. of Commerce, Bureau of the Census.

MLA (9th ed.) Citation

Salopek, Phillip A. Selected Characteristics of Travel to Work in 20 Metropolitan Areas, 1977. U.S. Dept. of Commerce, Bureau of the Census.

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