233748 Bentley, T. J., & Miller, H. F. (1996). Sharpen your team's skills in effective selling. London : McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)233748 Bentley, Trevor J., agus Herbert F. Miller. Sharpen Your Team's Skills in Effective Selling. London : McGraw-Hill, 1996.
Lua MLA (9ú heag.)233748 Bentley, Trevor J., agus Herbert F. Miller. Sharpen Your Team's Skills in Effective Selling. London : McGraw-Hill, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.