Periodicals 142
Congresses 33
Early accounts to 1600 24
Textbooks 23
Sources 20
Bibliography 17
Electronic books 12
Statistics 10
Archives 8
Newspapers 8
Abstracts 6
Early works to 1800 6
Microform catalogs 6
Biography 5
Handbooks, manuals, etc 4
Imprints 4
Catalogs 3
Directories 3
Maps 3
Périodiques 3
Fuentes 2
Indexes 2
Indices 2
Juvenile literature 2
Reviews 2
Bibliographies 1
Bio-bibliography 1
Case studies 1
Classification 1
Criticism, interpretation, etc 1
Digestos 1
Digests 1
Drama 1
Facsimiles 1
Gazetteers 1
Glossaries, vocabularies, etc 1
Guidebooks 1
Publicaciones periódicas 1
Registers 1
Revistas 1