Dyfyniad APA

Porterfield, G. A., & Hall, K. B. (1995). A concise guide to community planning. McGraw-Hill.

Dyfyniad Arddull Chicago

Porterfield, Gerald A., and Kenneth B. Hall. A Concise Guide to Community Planning. New York: McGraw-Hill, 1995.

Dyfyniad MLA

Porterfield, Gerald A., and Kenneth B. Hall. A Concise Guide to Community Planning. McGraw-Hill, 1995.

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