Irving, J. D.  1874-1918. <br/><br/>
A contribution to the geology of the northern Black Hills. 

 - [New York]  [s.n.]  1899. 
 - 1 p. leaf, 187-340 p.  illus., plates (partly fold.) fold. map.  25 cm. 
 - Contributions from the Geological department of Columbia university.  vol. IX, no. 65 .
<br/><br/> From Annals New York academy of sciences, vol. XII, no. 9. 
<br/><br/>Thesis (PH. D.)--Columbia university. 
<br/><br/><label>LCCN: </label>gs 06001227  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Black Hills (S.D. and Wyo.)
<br/><br/><label>LC Class. No.: </label>QE1  / .C7 vol. 9, no. 65