Dyfyniad APA

Mills, E. S., & Hamilton, B. W. (1989). Urban economics (Fourth edition.). Scott, Foresman.

Dyfyniad Arddull Chicago

Mills, Edwin S., and Bruce W. Hamilton. Urban Economics. Fourth edition. Glenview, Ill.: Scott, Foresman, 1989.

Dyfyniad MLA

Mills, Edwin S., and Bruce W. Hamilton. Urban Economics. Fourth edition. Scott, Foresman, 1989.

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