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1
Corporate Authors:
Group Author: ; ;
Published: U.S. Government Printing Office,
Publication Dates: [1971]
Call Number: P344.712/F636
;
Group Author: ; ;
Published: U.S. Government Printing Office,
Publication Dates: [1971]
Call Number: P344.712/F636
2
Corporate Authors:
Published: [Environmental Protection Agency, Water Quality Office]; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,
Publication Dates: 1970.
Call Number: X52/W324-4/v.1
Published: [Environmental Protection Agency, Water Quality Office]; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,
Publication Dates: 1970.
Call Number: X52/W324-4/v.1
3
Main Authors:
Corporate Authors:
Published: U.S. Environmental Protection Agency for sale by the Supt. of Docs., U.S. Govt. Print. Off.,
Publication Dates: 1972.
Call Number: TU991.21/M486/
Corporate Authors:
Published: U.S. Environmental Protection Agency for sale by the Supt. of Docs., U.S. Govt. Print. Off.,
Publication Dates: 1972.
Call Number: TU991.21/M486/