Bear, Firman E. <br/><br/>
Hunger Signs in Crops- a Symposium  : contributors - B.E.Brown et al. 

 - Washington, D.C.  : The American Society of Agronomy/National Fertilizer Association  , 1951  , c1949. 
 - 390 p.  : il. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gardening
<br/><br/><label>Dewey Class. No.: </label>635 BEA