Accuracy in powder diffraction :  proceedings of a Symposium on Accuracy in Powder Diffraction held at the National Bureau of Standards, Gaithersburg, Maryland, June, 11-15, 1979 / 
edited by S. Block, C. R. Hubbard ; sponsored by International Union of Crystallography [and] Chemistry Division, National Research Council of Canada [and] National Measurement Laboratory, National Bureau of Standards. 
 - [Washington, D.C.] :  U.S. Dept. of Commerce, National Bureau of Standards : for sale by the Supt. of Docs., U.S. Govt. Print. Off.,  [1980] 
 - x, 572 p. :  ill. ;  27 cm. 
 - NBS special publication ; 567 .
 - NBS special publication ;  567. .
<br/><br/> "February 1980." 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>LCCN: </label>80600010  
<br/><br/><label>Subjects--Topical Terms: </label><br/>RAYOS X
<br/><br/><label>LC Class. No.: </label>QC100  QC482.D5  / .U57 no. 567 
<br/><br/><label>Universal Decimal Class. No.: </label>539.26