Switzer, George. <br/><br/>
Tables of d spacings for angle 20 CuKa, CuKa1, CuKa2, FeKa, FeKa1, F eKa2 /  
George Switzer. 
 - Washington, D.C. :    Department of the Interior,    1948. 
 - v. ;    27 cm. 
 - Geological survey circular ;    29 .
<br/><br/><label>Subjects--Topical Terms: </label><br/> Minerals -- united States.
<br/><br/><label>Gov. Doc. Class. No.: </label>G.U.S I 53 (08)1/29