Palaniappan, S.P.. <br/><br/>
Cropping Systemin the Tropies /  Textual Documents 
S.P.Palaniappan. 
 - 1st ed. / 
 -  n.d. willey eastern ltd ,  1988. 
 - 597p. ;  22cm. 
<br/><br/><label>Subjects--Index Terms: </label>Botany 
<br/><br/><label>Dewey Class. No.: </label>576.11