Παραπομπή APA

Walter M. Sharp, & Walter M. Sharp; Anthony A. Olinzock; Otto Santos. (2004). KeyChamp. South-Western, Division of Thomson Learning.

Παραπομπή Chicago Style

Walter M. Sharp, και Walter M. Sharp; Anthony A. Olinzock; Otto Santos. KeyChamp. South-Western, Division of Thomson Learning, 2004.

Παραπομπή MLA

Walter M. Sharp, και Walter M. Sharp; Anthony A. Olinzock; Otto Santos. KeyChamp. South-Western, Division of Thomson Learning, 2004.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.