text Medan BIP Sumatera Utara 1991 Ind 35 p.: ill.; 19 cm + Lamp 35 p.: ill.; 19 cm + Lamp PROYEK PENINGKATAN INFORMASI PERTANIAN MEDAN FISH DISEASES AQUACULTURE 613.281 INLIS000000000003791 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)