Campbell, Marius R.  1858-1940. <br/><br/>
The Valley coal fields of Virginia, 
by Marius R. Campbell and others.  Prepared in co-operation with the United States Geological survey.  With a chapter on The forests of the Valley coal fields of Virginia, by Fred C. Pederson.  Prepared in co-operation with the Office of state forester. 
 - Charlottesville,  University of Virginia,  1925. 
 - ix, 322 p.  ill., XXVII pl. (incl. fold. col. map) tables, diagrs.  26 cm. 
<br/><br/> Map folded in pocket. 
<br/><br/>Bibliographical references. 
<br/><br/><label>LCCN: </label>gs 25000034  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal mines and mining--Virginia.<br/>Forests and forestry--Virginia.
<br/><br/><label>LC Class. No.: </label>QE173  / .A2 no. 25