Rucker, Walter E. <br/><br/>
Heath mathematics / 
Walter E. Rucker, Clyde A. Dilley, David W. Lowry. 
 - Lexington, MA :  Heath,  c1987. 
 - 1 v. (various pagings) : col. 
 - Level 4 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)