Format
Book
46,909
eBook
4,919
Default
1,427
Serial
865
Article
529
Thesis
321
Electronic
220
Data
157
Audio/Video
145
Image
132
Conference proceeding
120
Book chapter
118
OER
62
Text
53
DVD
52
Software
52
Microfilm
45
Slide
40
Report
14
Preprint
11
Map
9
Newspaper
6
Presentation
6
Physical object
5
Audio
4
CD
4
Event
4
Poster
3
Model
2
Photo
2
Book Chapter
1
Database
1
Musical score
1