Format
Book
151,285
Government Document
39,631
Map
17,266
Serial
13,785
Unknown
6,175
Journal
5,848
Electronic
4,742
Thesis
3,322
Kit
3,198
Photo
2,405
Conference Proceeding
1,451
Newspaper
1,277
Reference Material
905
Manuscript
754
Audio
681
Book Chapter
328
Musical Score
174
Physical Object
22
Article
12