Format
Book
520,908
Electronic
48,993
Unknown
29,844
Journal
10,560
Photo
10,357
Serial
7,368
Kit
3,635
Conference Proceeding
2,784
Thesis
2,149
Newspaper
2,118
Map
1,971
Manuscript
1,845
Audio
1,230
Government Document
808
Book Chapter
586
Physical Object
522
Reference Material
502
Musical Score
341
Article
315