TY - BOOK T1 - Irrigation systems handbook A1 - Orcullo, N. A. LA - English PP - Manila PB - Institute of Agricultural Engineers YR - 1997 UL - https://tuklas.up.edu.ph/Record/UP-99796217603000901 OP - 422 CN - TC 805 O73 SN - 9717470006 KW - Irrigation engineering : Handbooks, manuals, etc. ER -