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Wyświetlanie pozycji 2001-2010 z 3392

dynamic analysis (2)
ecological and economic justification of crop rotation (2)
ecological balance of the environment (2)
ecological housing (2)
ecological stability (2)
ecological state (2)
economic assessment (2)
economic efficiency of production (2)
economic relations (2)
economical and energetical effectiveness (2)

Wyświetlanie pozycji 2001-2010 z 3392

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