Developmental mathematics 
Keedy, Mervin L. 
 - Third edition. 
 -  Addison-Wesley Pub. Co.,  1993 
 - xxii, 924, 44, 9 p. 
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<br/><br/><label>ISBN: </label>0-201-53770-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra.
<br/><br/><label>Dewey Class. No.: </label>510 K24d 1993