Format
Book
286,901
Electronic
31,465
Photo
20,355
Unknown
10,354
Map
4,881
Kit
3,660
Audio
3,512
Journal
3,407
Manuscript
2,960
Musical Score
2,830
Serial
2,765
Thesis
1,360
Conference Proceeding
1,151
Newspaper
1,145
Book Chapter
803
Government Document
233
Physical Object
185
Reference Material
61
Article
46