Barufaldi, James P. <br/><br/>
Heath science / 
James P. Barufaldi, George T. Ladd [and] Alice Johnson Moses. 
 - Lexington, mass. :  Heath,  c1981. 
 - ii, 375 p. :  ill. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0669021512 
<br/><br/><label>LCCN: </label>91013246     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (Elementary).<br/>Science--Problems, exercises, etc.