Knudsen, Jens W. <br/><br/>
Biological techniques:  collecting, preserving, and illustrating plants and animals / 
[by] Jens W. Knudsen. 
 - New York :  Harper & Row,  1966. 
 - xi, 525 p. :  ill. 
<br/><br/><label>LCCN: </label>88901204 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological specimens--Collection and preservation.