TY  - BOOK
AU  - Visser, Marjolein 
AU  - Sikkenga,  Berend 
AU  - Sikkenga Berend
AU  - Berry, Mike
TI  - Digital marketing fundamentals : from strategy to ROI 
SN  - 9789001887124
PY  - 2018///
CY  - Nethrerlands
PB  - Noordhoff Uitgevers
KW  - Internet marketing
KW  - Marketing data processing
KW  - Marketing management
ER  -