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. ;  24 cm. 
<br/><br/>Includes indexes 
<br/><br/><label>ISBN: </label>0060437456 
<br/><br/><label>LCCN: </label>66-10839 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological specimens--Collection and preservation