Johnston, C.L. <br/><br/>
Essential arithmetic / 
C.L. Johnston, Alden T. Willis, Gale M. Hughes 
 - California :  Wadsworth Publishing Cpmpany,  c1984 
 - 534 p. 
<br/><br/><label>ISBN: </label>0534032400 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic.
<br/><br/><label>Dewey Class. No.: </label>513.142  / J73E