Solutions to problems in analytic geometry 
Dela Rama, Nicanor C. 
 - revised edition. 
 -  Rex Book Store.  1994 
 - iii, 194 pages. 
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<br/><br/><label>ISBN: </label>9-71231443-X 
<br/><br/><label>Dewey Class. No.: </label>F 516.3 R14s 1994