Ulrich's periodicals directory = Directorio de publicaciones periódicas Ulrich.
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| New Title: | Ulrich's international periodicals directory |
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| Previous Title: | Periodicals directory |
| Corporate Author: | |
| Format: | Serial |
| Language: | English |
| Published: |
New York :
R.R. Bowker,
1943-1963.
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| Subjects: |