Bickford, Elwood D. <br/><br/>
Lighting for plant growth / 
Elwood D. Bickford and Stuart Dunn. 
 - Kent, Ohio :  Kent State University Press,  1972. 
 - ix, 221 p. ;  29 cm. 
<br/><br/><label>ISBN: </label>0873381165 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Growth (Plants).<br/>Plants, Effect of light on.<br/>Phototropism.