APA (7th ed.) Citation

Warren Associates & Warren Associates. (2011). Wisconsin state map. Warren Associates.

Chicago Style (17th ed.) Citation

Warren Associates and Warren Associates. Wisconsin State Map. [Racine, Wisconsin?]: Warren Associates, 2011.

MLA (9th ed.) Citation

Warren Associates and Warren Associates. Wisconsin State Map. Warren Associates, 2011.

Warning: These citations may not always be 100% accurate.