Proceedings of the International Symposium on Water Quality Modeling of Agricultural Non-Point Sources : June 19-23, 1988, Utah State University, Logan, Utah /

PB90 258 781.

Best management practices report : a compilation of individual reports submitted by Robert Walker ... [et al.]

Includes bibliographies.

Aquifers of Illinois : underground sources of drinking water and non-drinking water /

"September, 1981."

Identification of sources causing TSP non-attainment in the Peoria area : analysis of historical high-volume filters /

"Project no. 10.064."