Hatfield, N. J. (1978). Basic market, research techniques for transit systems. U.S. Department of Commerce.
Citación estilo ChicagoHatfield, Nancy J. Basic Market, Research Techniques for Transit Systems. Austin: U.S. Department of Commerce, 1978.
Cita MLAHatfield, Nancy J. Basic Market, Research Techniques for Transit Systems. U.S. Department of Commerce, 1978.
Warning: These citations may not always be 100% accurate.