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1
Ulrich's International periodicals directory 1979-1980 : a classified guide to currents periodical, foreing and domestic
Published 1979“…R. R. Bowker,…”
Book -
2
Irregular serials and annuals : an international directory 1978-979.
Published 1978“…R. R. Bowker,…”
Book -
3
ULRICH'S internacional periodicals directory : classified guide to current periodicals, foreign and domestic.
Published 1973“…R. R. Bowker,…”
Book -
4
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5
Ulrich's international periodicals directory : a classified guide to current periodicals, foreign and domestic.
Published 1980“…R.R. Bowker,…”
Book -
6
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7