Basic mathematics percentage. 

 - [Washington, D.C.,  1965] 
 - v. 
<br/><br/> GPO Historic Shelflist Project - publication not in hand.  CNATT-P-4969.  CRDP Program record. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Percentage.
<br/><br/><label>Gov. Doc. Class. No.: </label>D 201.31/2:P-4969 PAT/REV.12-65