Format
Book
569,114
Government Document
176,905
Electronic
15,220
Serial
15,081
Reference Material
14,462
Journal
13,545
Conference Proceeding
6,217
Thesis
3,870
Unknown
2,780
Audio
1,881
Map
1,813
Manuscript
1,725
Article
1,392
Musical Score
1,051
Kit
427
Book Chapter
119
Photo
108
Physical Object
49
Newspaper
20