Ministry of Education and Science of Ukraine, Sumy State University, & Economic Research Centre. (2007). Економіка для екології: "Economics for Ecology" ISCS'2007.
Chicago Style (17th ed.) ZitazioaMinistry of Education and Science of Ukraine, Sumy State University, eta Economic Research Centre. Економіка для екології: "Economics for Ecology" ISCS'2007. 2007.
MLA (9th ed.) ZitazioaMinistry of Education and Science of Ukraine, et al. Економіка для екології: "Economics for Ecology" ISCS'2007. 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.