Cita APA

Johnson, M. A., & Johnson, M. A. (1976). Survey data and methods. Berkeley, Calif.: Institute of Transportation Studies University of California.

Citación estilo Chicago

Johnson, Michael Alan, y Michael Alan Johnson. Survey Data and Methods. Berkeley, Calif.: Institute of Transportation Studies University of California, 1976.

Cita MLA

Johnson, Michael Alan, y Michael Alan Johnson. Survey Data and Methods. Berkeley, Calif.: Institute of Transportation Studies University of California, 1976.