Monitoring the condition of our nation's ecological resources.

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Related Names
United States. Agricultural Research Service.
Language(s)
English
Published
[Washington, D.C.?] : Agricultural Research Service, [1990]
Subjects
Conservation of natural resources > United States.
Environmental monitoring > United States.
Administrative agencies > United States.
Physical Description
1 folded sheet (4 p.) : col. ill. ; 28 cm.
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