Format
Book
511,165
Government Document
92,010
Electronic
79,647
Audio
15,919
Serial
10,000
Conference Proceeding
5,260
Kit
4,860
Journal
4,752
Manuscript
4,527
Book Chapter
2,624
Thesis
1,648
Unknown
1,335
Map
1,283
Photo
927
Musical Score
263
Reference Material
104
Newspaper
35
Physical Object
12
Article
4