APA
Kotler P., . (2017). Marketing 4.0: Moving from Traditional to Digital. 2017: Wiley.
Chicago
Kotler Philip, . 2017. Marketing 4.0: Moving from Traditional to Digital. 2017: Wiley.
Harvard
Kotler P., . (2017). Marketing 4.0: Moving from Traditional to Digital. 2017: Wiley.
MLA
Kotler Philip, . Marketing 4.0: Moving from Traditional to Digital. 2017: Wiley. 2017.