APA

Ward D., . (1975). Theoretical comparison of fixed route bus and flexible route subscription bus feeder service in low density areas. Cambridge, MA: U.S. Department of Transportation. Transportation Systems Center. Report nr 75-2.

Chicago

Ward DE, . 1975. Theoretical comparison of fixed route bus and flexible route subscription bus feeder service in low density areas. Cambridge, MA: U.S. Department of Transportation. Transportation Systems Center. Report nr 75-2.

Harvard

Ward D., . (1975). Theoretical comparison of fixed route bus and flexible route subscription bus feeder service in low density areas. Cambridge, MA: U.S. Department of Transportation. Transportation Systems Center. Report nr 75-2.

MLA

Ward DE, . Theoretical comparison of fixed route bus and flexible route subscription bus feeder service in low density areas. Cambridge, MA: U.S. Department of Transportation. Transportation Systems Center. Report nr 75-2. 1975.