APA (7. basım) Alıntı

Etherington, B. (2018). Selling skills for complete amateurs. Marshall Cavendish Business.

Chicago Style (17. basım) Atıf

Etherington, Bob. Selling Skills for Complete Amateurs. Singapore: Marshall Cavendish Business, 2018.

MLA (9th ed.) Atıf

Etherington, Bob. Selling Skills for Complete Amateurs. Marshall Cavendish Business, 2018.