Barker, René A. <br/><br/>
Hydrogeologic framework of the Edwards-Trinity aquifer system, west-central Texas 
by René A. Barker and Ann F. Ardis. 
 - Washington  Denver, CO  U.S. G.P.O.  For sale by U.S. Geological Survey, Branch of Information Services  1996. 
 - vii, 61 p.  ill. (some col.), maps (some col.)  29 cm. 
 - Regional aquifer-system analysis--Edwards-Trinity aquifer system U.S. Geological Survey professional paper  1421-B .
 - Regional aquifer-system analysis--Edwards-Trinity aquifer system  B. U.S. Geological Survey professional paper  1421. .
<br/><br/> Includes eight folded plates in pocket.  Issued in a folder. 
<br/><br/>Includes bibliographical references (p. 57-61). 
<br/><br/><label>LCCN: </label>96043826  
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Edwards Aquifer Tex.<br/>Trinity Aquifer Tex.
<br/><br/><label>LC Class. No.: </label>GB1199.3.T4  / B37 1996 
<br/><br/><label>Dewey Class. No.: </label>551.49/09764 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.16:P1421-B