Fundamentals of algebra : An integrated text-workbook 
Donaghey, Robert. 
 -  Harcourt Brace Janovich, Publishers.  1978 
 - 491 pages. 
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<br/><br/><label>ISBN: </label>0-15-529420-2 
<br/><br/><label>Dewey Class. No.: </label>512 P71f 1978