Withrow A P Ed. <br/><br/>
Proceeding on photoperiodism 
by Withrow A P Ed. 
 -  1959 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>71414 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physiology
<br/><br/><label>Dewey Class. No.: </label>G:33C51p1,N57, J9