00689     2200181   4500001002100000008004100021035002000062245015500082100002900237260004700266300005300313084001500366520005400381082001100435650001900446650001800465990002400483INLIS000000000011318                                   Ind    a0010-1118011318  aClassification problems of selected soil profiles from North-Sumatra (Indonesia) according to the USDA soil Taxonomy systemcADIWIGANDA, Mamat Rachmat  aMamat Rachmat Adiwiganda  aGhentbThe stale university of ghentc1986  aiv, 97 p.: ill.; 29 cm.civ, 97 p.: ill.; 29 cm.  a631.44ADIc  aThesis- (Dr). The state university of ghent, 1986  a631.44  aSOIL STRUCTURE  aNORTH SUMATRA  a754/DTS/90-mfn13101