Nitrate water activities /

Bibliographic Details
Corporate Authors:	United States. Agricultural Research Service. Information Division, Agricultural Research Center (Beltsville, Md.). Educational Services Branch
Other Authors:	Valieant, Joan, Southland, Jerry L.
Format:	Government Document Book
Language:	English
Published:	Beltsville, Md. : Educational Service Branch, Agricultural Research Center ; [1972]
Series:	Science Study Aid ; no. 4.
Subjects:	Nitrates > Environmental aspects > Study and teaching (Elementary) Water > Pollution > Study and teaching (Elementary)

Description
Item Description:	Caption title. "Issued October 1971; slightly revised January 1972"--page 12.
Physical Description:	12 pages : illustrations ; 26 cm.
Bibliography:	Bibliography: page 12.