Nargundkar, R. (2003). Marketing research: Text and cases (2nd ed.). Tata McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Nargundkar, Rajendra. Marketing Research: Text and Cases. 2nd ed. New Delhi: Tata McGraw-Hill, 2003.
Lua MLA (9ú heag.)Nargundkar, Rajendra. Marketing Research: Text and Cases. 2nd ed. Tata McGraw-Hill, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.