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21
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22
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23
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24
An Information systems study on the University Book Center Book ordering
Baskı/Yayın Bilgisi 1992Tez -
25
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26
Library and book trade almanac the Bowker annnual facts,figures and reports
Baskı/Yayın Bilgisi 1992Kitap -
27
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28
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29
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30
Directory of publishing United Kingdom, Commonwealth, and overseas 1992.
Baskı/Yayın Bilgisi 1991Kitap


