@misc{Kotler_Philip_Marketing_2017,
 author={Kotler, Philip and Kartajaya, Hermawan and Setiawan, Iwan},
 copyright={MT Biznes},
 address={Warszawa <br>},
 howpublished={online},
 year={2017},
 publisher={MT Biznes},
 language={polski},
 title={Marketing 4.0 : era cyfrowa},
 keywords={Marketing, Marketing cyfrowy},
}