Format
Book
262,633
eBook
259,224
Electronic
145,948
Microfilm
40,155
Video
36,633
Map
18,752
Unknown
11,540
Serial
7,811
CD
6,403
Text
4,666
Musical Score
4,385
Record
4,244
Journal
2,559
DVD
2,165
VHS
1,042
Audio
788
Photo
673
Software
664
Manuscript
264
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