Geohydrology and simulation of steady-state flow conditions in regional aquifer systems in Cretaceous and older rocks underlying Kansas, Nebraska, and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming / 
by Donald C. Signor ... [et al.]. 
 - Washington :  U.S. Department of the Interiour  [1996] 
 - viii, 105 p. :  ill., maps (some col.) ;  29 cm. 
 - Regional aquifer-system analysis--Central Midwest U.S. Geological Survey professional paper :  1414-C .
<br/><br/> Includes two folded plates in pocket. 
<br/><br/>Includes bibliographical references (p. 103-105). 
<br/><br/><label>LCCN: </label>96-028445