00000cam a22000004i 4500 UP-99796217608337506 Buklod 20080823191601.0 a r |||| u| ta 080823s1998 xx d r |||| u| (iLib)UPD-00014950286 DLC DMSI rda TD171.8 P32 1998 Training module on lake environment protection, conservation and management. Laguna, Philippines PCAMRD 1998 42p Management. Conservation. Protection. Conservation of natural resources. Environmental protection. Guerrero, R.D III, Fernandez, D.D.G. and de Jesus, C.C. (eds.). UPD DMSI TD 171.8 P32 1998 Book