Dyfyniad APA

Gilbert, A. (1976). Development planning and spatial structure. Wiley.

Dyfyniad Arddull Chicago

Gilbert, Alan. Development Planning and Spatial Structure. London: Wiley, 1976.

Dyfyniad MLA

Gilbert, Alan. Development Planning and Spatial Structure. Wiley, 1976.

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