College algebra 
Johnston, C.L. 
 -  Dellen Publishing Company.  1978 
 - xiii, 490 pages. 
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<br/><br/><label>ISBN: </label>0-89517-002-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra.
<br/><br/><label>Dewey Class. No.: </label>512 J64c 1978