TY - BOOK AU - Black, T.a. ED - Unión Geodésica y Geofísica Internacional TI - Estimation of areal evapotranspiration T2 - IAHS publication SN - 094757171x AV - QC915 E77 PY - 1989/// CY - Wallingford PB - International association of hydrological sciences KW - Evapotranspiración KW - Congresos N1 - Proceedings of an international workshop held during the xixth general assembly of the international union of geodesy and geophysics at vancouver, british columbia, canada, 9-22 august, 1987 ER -