TY  - BOOK
AU  - Tirath, Gupta
AU  - Deepinder,  Mohan
TI  - Economics of Trees Versus Annual Crops on Marginal Agricultural Lands 
U1  - 333.3 TIR/EC 
PY  - 1982///
CY  - New Delhi
PB  - Oxford & IBH Publishing Co.
ER  -