APA

Institute of Transportation Engineers, . (1981). Institute of Transportation Engineers. 51 annual meeting, Boston, Massachusetts August 16-20, 1981. Compendium of technical papers. uo: Institute of Transportation Engineers.

Chicago

Institute of Transportation Engineers, . 1981. Institute of Transportation Engineers. 51 annual meeting, Boston, Massachusetts August 16-20, 1981. Compendium of technical papers. uo: Institute of Transportation Engineers.

Harvard

Institute of Transportation Engineers, . (1981). Institute of Transportation Engineers. 51 annual meeting, Boston, Massachusetts August 16-20, 1981. Compendium of technical papers. uo: Institute of Transportation Engineers.

MLA

Institute of Transportation Engineers, . Institute of Transportation Engineers. 51 annual meeting, Boston, Massachusetts August 16-20, 1981. Compendium of technical papers. uo: Institute of Transportation Engineers. 1981.