National registry of natural landmarks /

Mode of access: Internet.

Des Plaines River long-term monitoring program : vegetation analyses and habitat characterization : phase III report /

"Report to Commonwealth Edison Company, Chicago."--Cover.

Effects of using hybrid carp to control aquatic vegetation /

"Aquatic Biology technical series 1983(1)"--Cover.

The preservation and management of vegetation in ravines in Highland Park, Illinois : a report /

"With the assistance of the Public Works and Community Development Departments, City of Highland Park, Illinois."