ZYDROŃ, A. .; KAYZER, D.; SZOSZKIEWICZ, K.; IWIŃSKI, M. CONTINGENT VALUATION OF THE WIELKOPOLSKA NATIONAL PARK BY RESPONDENDS OF DIFFERENTIATED AGE AND EDUCATION. Economics and Environment, [S. l.], v. 60, n. 1, p. 10, 2017. Disponível em: https://www.ekonomiaisrodowisko.pl/journal/article/view/244. Acesso em: 19 apr. 2024.