Curtis, Helena. <br/><br/>
Instructor's manual to accompany Invitation to biology, 3rd ed. /  
by Helena Curtis and N. Sue Barnes 
 - New York :    Worth Pub.,    1981 
 - xiii, 113 p. :    ill. ;    23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Biology.
<br/><br/><label>Dewey Class. No.: </label>570 CUR