Dyfyniad APA

Illinois Municipal League. Illinois municipal review. Illinois Municipal League.

Dyfyniad Arddull Chicago

Illinois Municipal League. Illinois Municipal Review. Springfield, Ill.: Illinois Municipal League.

Dyfyniad MLA

Illinois Municipal League. Illinois Municipal Review. Illinois Municipal League.

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