Shuitu baochi yanjiu | Editorial Department of Research of Soil and Water Conservation. Cambridge University Press.
Chicago-referens (17:e uppl.)Shuitu Baochi Yanjiu | Editorial Department of Research of Soil and Water Conservation. Cambridge University Press.
MLA-referens (9:e uppl.)Shuitu Baochi Yanjiu | Editorial Department of Research of Soil and Water Conservation. Cambridge University Press.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.