Dyfyniad APA

Boyce,David E, & Nijkamp,Peter. (1991). Regional science: Retrospect and prospect. Spinger - Verlag.

Dyfyniad Arddull Chicago

Boyce,David E, and Nijkamp,Peter. Regional Science: Retrospect and Prospect. Berlin: Spinger - Verlag, 1991.

Dyfyniad MLA

Boyce,David E, and Nijkamp,Peter. Regional Science: Retrospect and Prospect. Spinger - Verlag, 1991.

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