Format
Book
12,478,984
Government Document
1,445,550
Electronic
870,606
Thesis
465,282
Unknown
348,366
Conference Proceeding
295,848
Serial
239,250
Journal
215,641
Audio
164,441
Map
155,611
Musical Score
108,146
Manuscript
106,994
Reference Material
41,699
Kit
17,716
Newspaper
14,536
Book Chapter
13,655
Photo
9,676
Physical Object
6,145
Article
435