Format
Book
890,427
Unknown
16,138
Photo
15,226
Conference Proceeding
11,660
Thesis
9,690
Kit
8,596
Electronic
8,547
Journal
7,773
Audio
5,119
Serial
3,944
Manuscript
3,633
Map
3,506
Government Document
2,773
Musical Score
2,170
Physical Object
664
Reference Material
436
Newspaper
419
Book Chapter
288
Article
14