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- 89184580 contributor B5996746.
- 89184580 contributor B5996747.
- 89184580 created "1987.".
- 89184580 date "1987".
- 89184580 date "1987.".
- 89184580 dateCopyrighted "1987.".
- 89184580 description "Includes bibliographical references.".
- 89184580 extent "133 p. ;".
- 89184580 issued "1987".
- 89184580 issued "1987.".
- 89184580 language "bul".
- 89184580 publisher "Sofii︠a︡ : Profizdat,".
- 89184580 spatial "Bulgaria.".
- 89184580 subject "HD6957.B85 M36 1987".
- 89184580 subject "Labor productivity Bulgaria.".
- 89184580 subject "Work environment Bulgaria.".
- 89184580 title "Uslovii︠a︡ na trud i efektivnost / Evdokii︠a︡ Maneva, Dimitrina Andreeva.".
- 89184580 type "text".