Armstrong, Augustus K.  1930 <br/><br/>
Mississippian rugose corals, Peratrovich formation, west coast, prince of wales island, Southeastern Alaska / 
by Augustus K. Armstrong. 
 -- Washington :   United States Government Printing Office,   1970 
 - 44 p., [13] h. de lam. -- 
 (Geological Survey Professional Paper  ; 534).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Alaska<br/>Corales fósiles
<br/><br/><label>Universal Decimal Class. No.: </label>563.6(798)