Condra, Geo. E.  1869-1958. <br/><br/>
Upper Carboniferous formations in the Lower Platte Valley, 
by G. E. Condra and Oliver J. Scherer. With an annotated bibliography by W. R. Johnson. 
 - Lincoln  University of Nebraska, Conservation and Survey Division,  1939. 
 - 18 p.  illus. 
<br/><br/>"Annotated bibliography": p. 16-18. 
<br/><br/><label>LCCN: </label>gs 39000289  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic--Carboniferous.<br/>Geology--Nebraska.
<br/><br/><label>LC Class. No.: </label>QE135  / .A43 no. 16