Format
Book
332,534
Journal
27,592
Serial
17,638
Electronic
12,889
Government Document
11,250
Thesis
6,302
Audio
4,934
Kit
4,230
Newspaper
4,036
Conference Proceeding
3,014
Manuscript
2,308
Book Chapter
2,205
Unknown
2,039
Photo
1,104
Map
887
Musical Score
376
Reference Material
308
Physical Object
14
Article
13