TY - BOOK ED - Tahal Consulting Engineers Ltd. TI - Northeast Thailand Irrigation improverment project II (Lam Pao stage II and Lam takhong) (IBRD LOAN NO. 1630 TH) (IFAD LOAN No. 5-THA) progress report No.13 February 1, 1983 to May 31, 1983 U1 - RID.631.7 PY - 1983/// CY - Bangkok PB - กรมชลประทาน ER -