Smith H Ed. <br/><br/>
Plants and the daylight spectrum 
Smith H Ed. 
 -  1981 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>51194 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany
<br/><br/><label>Dewey Class. No.: </label>I5:33c5, M1