TY - ADVS AU - Lim Suan,Medel P. TI - Hydrology of grassland and forested watersheds in Angat, Bulacan, Philippines PY - 1990/// CY - Ann Arbor, Mich. PB - University Microfilms International KW - Grasslands KW - Philippines KW - Forest Watersheds KW - Hydrology N1 - Thesis (Ph.D.) - Colorado State University, 1989 ER -