Welch, Robert Newman,  1912- <br/><br/>
Geology of Vernon Parish, 
by Robert N. Welch. 
 - Baton Rouge, La.,  Dept. of Conservation, Louisiana Geological Survey,  1942. 
 - xii, 90 p.  illus. 
<br/><br/> At head of title: State of Louisiana. Dept. of Conservation.  Folded map inserted. 
<br/><br/>Bibliography: p. [83]-86. 
<br/><br/><label>LCCN: </label>gs 42000207  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Louisiana--Vernon Parish.
<br/><br/><label>LC Class. No.: </label>QE117  / .A22 no. 22