Format
Book
737,726
Electronic
129,688
Map
22,130
Manuscript
16,924
Unknown
9,332
Thesis
6,349
Kit
5,237
Book Chapter
1,606
Journal
1,581
Conference Proceeding
1,350
Photo
1,311
Musical Score
1,117
Newspaper
852
Serial
362
Audio
275
Government Document
56
Physical Object
51
Reference Material
28
Article
12