Locklin, D. P. (1972). Economics of Transportation (7th ed.). Richard D. Irwin.
Chicago Edition CitationLocklin, D. Philiph. Economics of Transportation. 7th ed. Illiniois: Richard D. Irwin, 1972.
MLA引文Locklin, D. Philiph. Economics of Transportation. 7th ed. Richard D. Irwin, 1972.
警告:這些引文格式不一定是100%准確.