Lua APA (7ú heag.)
Rossi, I. D. (2011). Vtiger CRM beginner's guide: Record and consolidate all your customer information with vtiger CRM. Packt Pub. Ltd..
Lua i Stíl Chicago (17ú heag.)
Rossi, Ian D. Vtiger CRM Beginner's Guide: Record and Consolidate All Your Customer Information with Vtiger CRM. Birmingham, U.K.: Packt Pub. Ltd., 2011.
Lua MLA (9ú heag.)
Rossi, Ian D. Vtiger CRM Beginner's Guide: Record and Consolidate All Your Customer Information with Vtiger CRM. Packt Pub. Ltd., 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.