Search for: [Subject and Keywords = bumble bees] OR [Subject and Keywords = trzmiele \- handel] OR [Subject and Keywords = Hymenoptera] OR [Subject and Keywords = Bombus] OR [Title = The import of bumble\-bees to Poland \- profits and threats] OR [Title = Import trzmieli do Polski \- korzyści i zagrożenia] OR [Creator = Banaszak, Józef \(1947– \)]