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- Corporate/Agency Authors:
- Environmental Protection Agency
- Publisher:
- Environmental Protection Agency
- Date:
- June 1970
- SuDoc number:
- EP 1.23/5:650/4-75-002
- 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:
- Federal Water Quality Administration and Environmental Protection Agency
- Publisher:
- Federal Water Quality Administration
- Date:
- June 1970
- SuDoc number:
- I 67.13/4:(nos.)
- Corporate/Agency Authors:
- Water Programs Office and Environmental Protection Agency
- Publisher:
- Water Programs Office
- Date:
- June 1970
- SuDoc number:
- EP 2.10:(nos.)
- Corporate/Agency Authors:
- Water Quality Office and Environmental Protection Agency
- Publisher:
- Water Quality Office
- Date:
- June 1970
- SuDoc number:
- EP 2.10:16040 ELO 06/70
- Corporate/Agency Authors:
- Federal Water Quality Administration and Environmental Protection Agency
- Publisher:
- Federal Water Quality Administration
- Date:
- June 1970
- SuDoc number:
- I 67.13/4:(nos.)
- Corporate/Agency Authors:
- Water Quality Office and Environmental Protection Agency
- Publisher:
- Water Quality Office
- Date:
- June 1970
- SuDoc number:
- EP 2.10:17020---06/70
- Corporate/Agency Authors:
- Water Quality Office and Environmental Protection Agency
- Publisher:
- Water Quality Office
- Date:
- June 1970
- SuDoc number:
- I 67.13/4:17040 EFO 06/70
- 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