Format
Book
632,630
Musical Score
283,697
Audio
146,477
Thesis
22,818
Manuscript
20,373
Electronic
14,971
Unknown
10,824
Journal
6,097
Conference Proceeding
4,767
Serial
4,019
Map
2,354
Government Document
1,290
Book Chapter
1,131
Newspaper
1,066
Kit
1,056
Physical Object
1,041
Photo
276
Reference Material
48