Goldfayn, A. (2018). Selling boldly. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Goldfayn, Alex. Selling Boldly. New Jersey: John Wiley & Sons, 2018.
Lua MLA (9ú heag.)Goldfayn, Alex. Selling Boldly. John Wiley & Sons, 2018.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.