Knudsen, Jens W. <br/><br/>
Biological techniques :  Collecting, preserving, and illutrating plants and animals / 
Jens W. Knudsen. 
 - New York :  Harper and Row,  1966. 
 - 525 p. :  24 cm. 
<br/><br/><br/>Ingles 
<br/><br/><label>ISBN: </label> Normal 
<br/><br/><label>Dewey Class. No.: </label>578.07