A problem of solving Approach for Elementary School Teachers / 
Billstein,Rick 
 - 2nd ed. 
 - Menlo Park :  The Benjamin/Cumming Publishing Company,  c1984 
 - xvi,723pages :  ill.som.col.;  24cm. 
<br/><br/><label>ISBN: </label>0 8053 0856 3 
<br/><br/><label>Subjects--Topical Terms: </label>--mathematics
<br/><br/><label>Dewey Class. No.: </label>510 BIL