Lua APA (7ú heag.)

Heller,Robert, & Hindle,Tim. (2008). Selling successfully. Dorling Kindersley.

Lua i Stíl Chicago (17ú heag.)

Heller,Robert, agus Hindle,Tim. Selling Successfully. London: Dorling Kindersley, 2008.

Lua MLA (8ú heag.)

Heller,Robert, agus Hindle,Tim. Selling Successfully. Dorling Kindersley, 2008.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.