TY - BOOK AU - SRIVASTAVA Jitendra P AU - ALDERMAN Harold TI - Agriculture and environmental challenges: Proceedings of the Thirteenth Agricultural Symposium SN - 082132585x U1 - X9(J):(G:55), N3/UN PY - 1993/// CY - Washington PB - D.C. World Bank N1 - Glossary chapterwise ER -