APA (7. basım) Alıntı

LES GIBLIN. (2014). CORE SELLING SKILLS. EMBASSY BOOK.

Chicago Style (17. basım) Atıf

LES GIBLIN. CORE SELLING SKILLS. MUMBAI: EMBASSY BOOK, 2014.

MLA (9th ed.) Atıf

LES GIBLIN. CORE SELLING SKILLS. EMBASSY BOOK, 2014.