Cita APA (7a ed.)

Hatfield, N. J. (1978). Basic market, research techniques for transit systems. U.S. Department of Commerce.

Cita Chicago Style (17a ed.)

Hatfield, Nancy J. Basic Market, Research Techniques for Transit Systems. Austin: U.S. Department of Commerce, 1978.

Cita MLA (9a ed.)

Hatfield, Nancy J. Basic Market, Research Techniques for Transit Systems. U.S. Department of Commerce, 1978.