Format
Book
737,335
Electronic
129,686
Map
22,147
Manuscript
16,976
Unknown
9,331
Thesis
6,351
Kit
5,286
Book Chapter
1,605
Journal
1,582
Conference Proceeding
1,348
Photo
1,317
Musical Score
1,117
Newspaper
852
Serial
362
Audio
275
Government Document
55
Physical Object
52
Reference Material
29
Article
12