Ramos, Mila Medina <br/><br/>
International bibliography on cropping systems 
compiled by Mila Medina Ramos 
 - Laguna, Philippines  The International Rice Research Institute  1978 
 - 181 p. ; 30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cropping systems--Bibliography