Water pollution--1970. Hearings, Ninety-first Congress, second session, on S.3687, S.3468, S.3470, S.3471, S.3472, S.3181, S.3484, S.3500, S.3507, S.3614, S.3688, and S.3697 ...
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| Format: | Book |
| Language: | English |
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Washington :
U.S. Govt. Print. Off.,
1970-.
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| Item Description: | Hearings held Apr. 20- 1970. |
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| Physical Description: | v. ; 24 cm. |