Stoczkowska, R., Obrębska, M., Kowalski, R., & Maluchnik-Pucek, M. (2006). Informal environmental education on example of regional press in lubelskie province. Studia Ecologiae Et Bioethicae, 4(1), 405–414. https://doi.org/10.21697/seb.2006.4.1.30