Sharp, W. M., & Olinzock, A. A. (1999). KeyChamp. Cincinnati: South-Western Educational Pub.
Chicago Style citaatSharp, Walter M., en Anthony A. Olinzock. KeyChamp. Cincinnati: South-Western Educational Pub, 1999.
MLA citatieSharp, Walter M., en Anthony A. Olinzock. KeyChamp. Cincinnati: South-Western Educational Pub, 1999.
Let op: Deze citaties zijn niet altijd 100% accuraat.