Nitrate in Wisconsin groundwater :
sources and concerns /
Dennis Keeney, T. C. Daniel, and Byron Shaw.

APA Citation

Keeney, D. R., Shaw, B. H., Daniel, T. C., University of Wisconsin--Extension. Cooperative Extension Programs. (1980). Nitrate in Wisconsin groundwater: sources and concerns. [Madison, Wis.]: University of Wisconsin--Extension.

MLA Citation

Keeney, Dennis R, Byron H Shaw, T. C Daniel, and University of Wisconsin--Extension. Cooperative Extension Programs. Nitrate In Wisconsin Groundwater: Sources And Concerns. [Madison, Wis.]: University of Wisconsin--Extension, 1980.