People Poland Janusz Grzonkowski peoplepill id: janusz-grzonkowskiJG 7 views today 7 views this weekPolish teacherJanusz GrzonkowskiBiographyListsAlso ViewedListsJanusz Grzonkowski is in following listsBy field of workNotable Polish people in academiaGender:Male, Born in:Years 1930 to 1969By work and/or countryNotable Polish TeachersGender:Male, Born in:Years 1930 to 1969From our partnersSponsoredJanusz Grzonkowski