drafting and design standars text s.i] German Agency for Techical Cooperation 1979 34 p. ill ; 29 cm IRRIGATION-WEST SUMATERA WEST SUMATERA SUMATERA BARAT IRIGASI IRIGASI-PASAMAN BARAT PASAMAN BARAT 631.67 631.67 INLIS000000000002235 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)