Rares Halbac Cotoara Zamfir. "PREPARATORY CLASS-A NEW CHALLENGE IN ENVIRONMENTAL EDUCATION FOR CHILDREN." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION (2013). https://doi.org/10.5593/sgem2013/be5.v2/s22.018