Mathematics level 1:  
by Walker, Eric. 
 - New York  Holt, Rinehart winston ltd  1981 
 - 387p. 
<br/><br/><label>ISBN: </label>0-03-910314-5 
<br/><br/><label>Subjects--Topical Terms: </label>--School of Pure and Applied Sciences
<br/><br/><label>LC Class. No.: </label>QA 43   / .W35 1982 
<br/><br/><label>Dewey Class. No.: </label>QA 43 .W35 1982