Szibrowski, Rudolf, et.al.,  c1987. <br/><br/>
Maths Workshop Book 1 :  Explorations / 
Szibrowski, Rudolf, et.al. 
 - Austra :  Thomas Nelson, Inc,  c1987. 
 - ix, 350p. :  illus. ;  25.4cm. 
<br/><br/><label>ISBN: </label>017006994X