TY  - BOOK
AU  - Singh,M P   .
TI  - Nitrogen fixing and multipurpose tree species for afforestation / 
T2  - Recent researches in ecology,enviroment and pollution-7, 
U1  - 577.3 
PY  - 1991///
CY  - New Delhi : 
PB  - Today and Tomorrows Printers and Publishers , 
KW  - BOTANY
N1  - NULL
ER  -