Shankar, R. (2002). Services Marketing. Excel Books.
Chicago-čujuhus (17. p.)Shankar, Ravi. Services Marketing. New Delhi: Excel Books, 2002.
MLA-čujuhus (9. p.)Shankar, Ravi. Services Marketing. Excel Books, 2002.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.