A unified program in science, health and safety / 
by J. Darrall Barrard ... [et al.] 
 - New York :  Macmillan,  1959 
 - 122 p. ;  24 cm. 
 - The Macmillan science life series ;  book 1 .
<br/><br/><label>ISBN: </label> Rs. 2.32 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Dictionaries, Juvenile
<br/><br/><label>Dewey Class. No.: </label>503