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- Corporate/Agency Authors:
- Water Quality Office and Environmental Protection Agency
- Publisher:
- Water Quality Office
- Date:
- July 1970
- SuDoc number:
- I 67.2:Sa 3
- Corporate/Agency Authors:
- Water Quality Office and Environmental Protection Agency
- Publisher:
- Water Quality Office
- Date:
- [June 1970.]
- SuDoc number:
- I 67.2:B 52/3
- Corporate/Agency Authors:
- Environmental Protection Agency
- Publisher:
- Environmental Protection Agency
- Date:
- June 1, 1970
- SuDoc number:
- I 67.2:C 76/2/965-69
- Corporate/Agency Authors:
- Environmental Protection Agency
- Publisher:
- Environmental Protection Agency
- Date:
- [2d edition.] June 1970
- SuDoc number:
- I 67.2:M 69 o/5/970-2
- Corporate/Agency Authors:
- Water Programs Office and Environmental Protection Agency
- Publisher:
- Water Programs Office
- Date:
- June 1970
- SuDoc number:
- I 67.2:R 25/3
- Corporate/Agency Authors:
- Water Programs Office and Environmental Protection Agency
- Publisher:
- Water Programs Office
- Date:
- June 1970
- SuDoc number:
- I 67.2:M 69 o/4
- Corporate/Agency Authors:
- Water Programs Office and Environmental Protection Agency
- Publisher:
- Water Programs Office
- Date:
- May 1970
- SuDoc number:
- I 67.2:M 53
- Corporate/Agency Authors:
- Water Programs Office and Environmental Protection Agency
- Publisher:
- Water Programs Office
- Date:
- May 1970
- SuDoc number:
- I 67.2:B 48c
- Corporate/Agency Authors:
- Environmental Protection Agency
- Publisher:
- Environmental Protection Agency
- Date:
- Apr. 1970
- SuDoc number:
- I 67.2:W 28/3
- Corporate/Agency Authors:
- Water Programs Office and Environmental Protection Agency
- Publisher:
- Water Programs Office
- Date:
- [Apr. 1970.]
- SuDoc number:
- I 67.2:W 29/7