TY - BOOK AU - RAY Susanta K TI - Intensification of agriculture ; A study in the plains of Uttar Pradesh T2 - Studies in economic development and planning;38 U1 - "X9(J):75.252, M5/SC" PY - 1985/// CY - Delhi PB - Hindustan pubkishing corp. N1 - Appendix :107-133p ER -