Some unusual natural areas in Illinois
By: Robert A. Evers and Lawrence M. Page
Contributors: Page, Lawrence M
Series: Biological notes / Illinois Natural History Survey -- 100; Biological notes (Illinois. Natural History Survey Division) -- no. 100
Publisher: Illinois Natural History Survey
Published: 1977
Place of publication: Urbana
Language: eng
Number of pages: 47
Subjects: Natural areas -- Illinois; Natural history -- Illinois
Notes: Cover title

Bibliography: p. 42-43