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Libros electrónicos
285
Electronic books
127
Periodicals
14
Biography
12
Libros electronicos
10
Congresses
5
Electronic journals
5
Biografía
3
Case studies
3
Libros electr{acute}onicos
3
Périodiques
3
Sources
3
Historia
2
History
2
20th century
1
Casos de estudio
1
Diaries
1
Exhibitions
1
Fuentes
1
Genealogy
1
Interviews
1
Journals
1
Libros de texto
1
Publicaciones seriadas
1
Statistics
1