Statistical services of the United States government 

 - Washington :  U.S. Government printing office,  1963. 
 - ix, 136 p. ;  23 cm 
<br/><br/>Includes references 
<br/><br/><br/>eng 
<br/><br/><label>ISBN: </label>NA 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics
<br/><br/><label>Dewey Class. No.: </label>330.70973 UNI