Angeles, M. S. Measuring benefits from natural resource conservation : the case of the central Nisayas regional project-I / M. S. Angeles - Manila : Philippine Institute for Development Studies (PIDS) , 1992 - 33p. : ill. ; 30 cm. - Working paper No. 92-03 . Includes bibliographical references. Subjects--Topical Terms: Natural resources--PhilippinesRural development Gov. Doc. Class. No.: PH PIDS WP-92-03