Always a river : supplemental environmental education curriculum on the Ohio River and water, grades K-12
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| Corporate Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
[Cincinnati, Ohio?] :
U.S. Environmental Protection Agency,
1991
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| Subjects: | |
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| Item Description: | "Office of Research and Development"--Cover "September 1991"--Cover "AWBERC-91-09"--Cover |
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| Physical Description: | xxiv, 284 p. : ill., maps ; 28 cm |
| Bibliography: | Includes bibliographical references |