Chopra, P. M. (2011). Marketing Management. Dreamtech Press.
Lua i Stíl Chicago (17ú heag.)Chopra, P.K.; Mehra. Marketing Management. New Delhi: Dreamtech Press, 2011.
Lua MLA (9ú heag.)Chopra, P.K.; Mehra. Marketing Management. Dreamtech Press, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.