Digital publishing survey 2016 DCL-Bowker

2. 0
10
20
30
40
50
60

3. 0 10 20 30 40 50
0
10
20
30
40
50
60
0 20 40 60 80 100
0 10 20 30 40 50 60 70 80

4. 0 10 20 30 40 50