Format
Book
867,215
Electronic
76,455
Unknown
30,765
Journal
11,634
Serial
11,056
Photo
10,397
Kit
7,547
Thesis
6,419
Conference Proceeding
3,668
Government Document
2,487
Manuscript
2,323
Audio
2,190
Map
2,146
Newspaper
2,142
Book Chapter
1,648
Reference Material
561
Physical Object
531
Musical Score
468
Article
323