Helzer, C. (2010). The ecology and management of prairies in the central United States. Published for The Nature Conservancy by the University of Iowa Press.
Citace podle Chicago (17th ed.)Helzer, Chris. The Ecology and Management of Prairies in the Central United States. Iowa City: Published for The Nature Conservancy by the University of Iowa Press, 2010.
Citace podle MLA (9th ed.)Helzer, Chris. The Ecology and Management of Prairies in the Central United States. Published for The Nature Conservancy by the University of Iowa Press, 2010.
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