TY - GEN L1 - http://bibliotekacyfrowa.pl/Content/65008/PDF/Citation_Index.pdf L2 - http://bibliotekacyfrowa.pl/Content/65008 KW - Poland KW - Problems concerning contemporary families KW - family KW - social problems UR - http://bibliotekacyfrowa.pl/dlibra/publication/edition/65008 ER -