Παραπομπή APA

Guffey, M. E., & Mary Ellen Guffey; Carolyn M. Seefer. Business English. Mason, Ohio: Thomson/South-Western.

Παραπομπή Chicago Style

Guffey, Mary Ellen, και Mary Ellen Guffey; Carolyn M. Seefer. Business English. Mason, Ohio: Thomson/South-Western.

Παραπομπή MLA

Guffey, Mary Ellen, και Mary Ellen Guffey; Carolyn M. Seefer. Business English. Mason, Ohio: Thomson/South-Western.

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