000 nam a22 4500
082 _aRID.631.7
_bR6p
_d1979
100 _aRoyal Irrigation Department
245 _aPhitsanulok Irrigation Project : Report on BID no.PI-1-4
_bCanals and Structures - part 3
_cReport no.30
260 _aBangkok
_bRoyal Irrigation Department
_c1979
942 _c12
999 _c2378
_d2378