Format
Book
262,767
eBook
259,363
Electronic
146,384
Microfilm
40,155
Video
36,644
Map
18,756
Unknown
11,540
Serial
7,816
CD
6,402
Text
4,666
Musical Score
4,386
Record
4,244
Journal
2,557
DVD
2,166
VHS
1,042
Audio
789
Photo
675
Software
663
Manuscript
265
Image
259
Slide
186
StillImage
141
Cassette
115
Still Image
33
Blu-ray Disc
24
Kit
19
Text; Still Image
19
Brochure
17
Sensor Image
16
Physical Object
13
Newspaper
11
Book Chapter
10
Other
8
Braille
2
Article
1
Globe
1
StillImage; Text
1
Type
1
speeches
1
text
1