Format
Book
403,376
Electronic
38,692
Photo
20,355
Unknown
11,415
Audio
5,399
Map
4,924
Kit
4,718
Journal
3,817
Musical Score
3,815
Serial
3,567
Manuscript
3,237
Thesis
3,112
Conference Proceeding
1,365
Newspaper
1,184
Book Chapter
1,182
Government Document
379
Physical Object
187
Reference Material
71
Article
49