TY  - BOOK
AU  - Visser Marjolein
AU  -  Berry Mike
AU  -  Sikkenga Berend
TI  - Digital marketing fundamentals
U1  - X:51:(D66), Q8 
PY  - 2018///
CY  - Netherlands
PB  - Noordhoff Uitgevers         
KW  - Operational Research
ER  -