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Selskostopanska ergonomija
Mirčev, Mirčo Aleksandrov - 1980
Persistent link: https://www.econbiz.de/10002503535
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Izjavate
Draganov, Mincǒ (contributor);  … - 1980
Persistent link: https://www.econbiz.de/10003160737
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Organizacija i organiziranost na socialnata sistema
Markov, Vankov Marko; Tanev, Gorzdan Markov - 1981
Persistent link: https://www.econbiz.de/10002431544
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Socialisticeskata organizacija na truda v agrarnopromistlenite kompleksi
Penkov, Dimitar (revision) - 1979
Persistent link: https://www.econbiz.de/10014421589