JAIN J N. (2007). MODERN MARKETING OF SERVICES: PRINCIPLES AND TECHNIQUES. REGAL PUBLICATIONS.
Lua i Stíl Chicago (17ú heag.)JAIN J N. MODERN MARKETING OF SERVICES: PRINCIPLES AND TECHNIQUES. NEW DELHI: REGAL PUBLICATIONS, 2007.
Lua MLA (9ú heag.)JAIN J N. MODERN MARKETING OF SERVICES: PRINCIPLES AND TECHNIQUES. REGAL PUBLICATIONS, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.