00586nam a2200217Ia 4500 170901s1989 xx 000 0 und d 9711180758 333.73 P66S Ponce, Eliseo R. Sustaining Upland Development Selected Papers USA De La Salle University Research Center 1989 231 Economics Social sciences Agroforestry Hill farming Philippines Salazar, Robert C. Zerrudo, Alma Bella L. ddc BK 2553 2553 0 0 ddc 0 0 RAU RAU 2017-10-18 Donated By- D. P. Yadav, M.P. (Lok Sabha) 0 333.73 P66S 49566 2017-10-18 2003-05-08 BK Gift