Dyfyniad APA

National Cooperative Transit Research & Development Program (U.S.) & Sydec, Inc. (1989). Planning practice for major transit investments. Transportation Research Board, National Research Council.

Dyfyniad Arddull Chicago

National Cooperative Transit Research & Development Program (U.S.) and Inc Sydec. Planning Practice for Major Transit Investments. Washington, D.C: Transportation Research Board, National Research Council, 1989.

Dyfyniad MLA

National Cooperative Transit Research & Development Program (U.S.) and Inc Sydec. Planning Practice for Major Transit Investments. Transportation Research Board, National Research Council, 1989.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.