Heath science / 
authors : James P. Barufaldi ... [et al.] 
 - Lexington, Mass. :  D. C. Heath,  1981 
 - 250 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0669021377  Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science.