@book {
author = {Ravi Kalakota and Marcia M. Robinson and Ravi Kalakota},
title = {Az e-üzlet},
year = {2010},
publisher = {Typotex Kiadó},
isbn = {978 963 932 625 5},
URL = {https://edu.interkonyv.hu/konyvek/kalakota-robinson-ravi-az-e-uzlet/}
}