John O. Helgesen

J. H. · John H. · John O.

titleISBN-13
(ISBN-10)
year of publica-
tion
other author(s)
Assessment of Nonpoint-Source Contamination of the High Plains Aquifer in South-Central Kansas, 1987978-99938-836-7-8
(99938-836-7-0)
1995Lloyd E. Stullken · A. T. Rutledge
Regional Aquifers in Kansas, Nebraska, and Parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and978-99938-47-25-0
(99938-47-25-9)
1993Donald G. Jorgensen · Jeffrey L. Imes
Surface-Water-Quality Assessment of the Lower Kansas River Basin, Kansas and Nebraska: Results of Investigations, 1987-90 (U.S. Geological Survey wat978-99966-81-56-1
(99966-81-56-4)
1996

Caedmon Audio Cassette · Natl Park Service · Smith

 

John O'Hern