APA (7th ed.) Citation

WKZO (Radio station : Kalamazoo, Mich.), Mortar, R., Dunbar, W. F., & Krieger, R. O. Know your city.

Chicago Style (17th ed.) Citation

WKZO (Radio station : Kalamazoo, Mich.), Roy Mortar, Willis Frederick Dunbar, and Ray O. Krieger. Know Your City.

MLA (9th ed.) Citation

WKZO (Radio station : Kalamazoo, Mich.), et al. Know Your City.