Tthe Flowering Response of the Rice Plant to Photoperiod 

 - 4th Edition 
 - Los Banos Laguna,Philippines  International Rice Research Institute  1985 
 -  p.61: 
<br/><br/><label>ISBN: </label>9711041510 
<br/><br/><label>Universal Decimal Class. No.: </label>633.18  / DOA