Format
Book
211,191
Audio
38,860
Unknown
26,310
Serial
19,724
Map
14,449
Kit
13,414
Journal
3,668
Thesis
3,128
Musical Score
1,871
Conference Proceeding
1,790
Electronic
1,460
Government Document
1,180
Manuscript
303
Photo
251
Newspaper
129
Reference Material
120
Book Chapter
74
Physical Object
5
Article
1