Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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