Essential algebra 
Johnston, C. L. (Carol Lee), 1911- 
 - Fourth edition. 
 -  Wadsworth Pub. Co.,  1985 
 - 600 p. 
 - Johnston, C. L. (Carol Lee), 1911- Johnston/Willis developmental mathematics series. .
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<br/><br/><label>ISBN: </label>0-534-05022-0 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra.
<br/><br/><label>Dewey Class. No.: </label>512 H68 1985