Wald, George. <br/><br/>
Twenty-six afternoons of biology 

 - Reading, Mass. :  Addison-Wesley,  1962 
 - 159 p. 
<br/><br/><label>LCCN: </label>51075 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biología--Manuales de laboratorio.
<br/><br/><label>Dewey Class. No.: </label>574.072  / W35