Format
Book
262,834
eBook
259,788
Electronic
146,381
Microfilm
40,155
Video
36,646
Map
18,758
Unknown
11,623
Serial
7,857
CD
6,402
Text
4,666
Musical Score
4,386
Record
4,244
Journal
2,557
DVD
2,166
VHS
1,042
Audio
790
Photo
675
Software
662
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