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79620243
79620243
http://www.worldcat.org/oclc/79620243
Petkim Petrokimya A.Ş. ile Petrol-Iş Sendikasi arasinda imzalanan toplu iş sözleşmesi : (1.9.1978 - 31.8.1980).
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79620243
http://www.worldcat.org/oclc/79620243