Dyfyniad APA

tinbergen, j. (1964). regional planning. the institute of national planning.

Dyfyniad Arddull Chicago

tinbergen, j. Regional Planning. cairo: the institute of national planning, 1964.

Dyfyniad MLA

tinbergen, j. Regional Planning. the institute of national planning, 1964.

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