Yaffa, Harold <br/><br/>
Instructor's manual for a biology of human concern / 
prepared by Harold Yaffa 
 - Philadelphia, P.A :   J.B. Lippincott,   1972 
 - 44 p. ;   23 cm. 
<br/><br/>Includes bibliographical references (p. 43-44) 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Biology-- Handbooks, manuals, etc.
<br/><br/><label>Dewey Class. No.: </label>570