THORTON GAUTAM. (1994). PROSPECTING: KEY TO SALES SUCCESS. CRISP PUBLICATION.
Lua i Stíl Chicago (17ú heag.)THORTON GAUTAM. PROSPECTING: KEY TO SALES SUCCESS. CALIFORNIA: CRISP PUBLICATION, 1994.
Lua MLA (9ú heag.)THORTON GAUTAM. PROSPECTING: KEY TO SALES SUCCESS. CRISP PUBLICATION, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.