Knudsen Jens W <br/><br/>
Biological technqiues 

 -  1966 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>71223 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology popular description
<br/><br/><label>Dewey Class. No.: </label>G:17, K6;4-;5