نوع المادة
Indexes
Bibliography
2,815
Periodicals
2,643
History
2,256
Index
1,202
Bibliographies
1,162
Sources
1,026
Genealogy
987
Electronic books
912
Catalogs
897
Biography
774
indexes (reference sources)
684
Maps
420
Dictionaries
389
Biographies
373
Statutes and codes
307
Deeds
245
Imprints
244
Directories
235
Abstracts
217
Early works to 1800
207
Criticism, interpretation, etc
204
Databases
186
Index maps
182
Tables of contents
175
Statistics
160
Cases
159
Microform catalogs
147
Registers
147
Digests
132
Archives
120
Concordances
109
Treaties
97
Newspapers
86
Classification
84
Chronology
83
Bibliographie
78
Electronic reference sources
76
Registers (Lists)
75
Early works
71
Court decisions and opinions
70
Correspondence
67
Family histories
67
Congresses
65
Exhibitions
65
CD-ROMs
64
Périodiques
64
Reviews
64
Online databases
60
Periodical
60
المزيد ...