Dyfyniad APA

Ulberg, C. G. (1990). Issues in the shift from regional to local provision of bus service. Transportation Research Board, National Research Council.

Dyfyniad Arddull Chicago

Ulberg, Cyrus G. Issues in the Shift from Regional to Local Provision of Bus Service. Washington, D.C: Transportation Research Board, National Research Council, 1990.

Dyfyniad MLA

Ulberg, Cyrus G. Issues in the Shift from Regional to Local Provision of Bus Service. Transportation Research Board, National Research Council, 1990.

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