na INLIS000000000011779 Ind 0010-1118011779 The West Sumatra lakes: survey report GIESEN, Wim Wim Giesen; Sukotjo Bogor AWB 1991 xiv, 40 p. : ill. ; 30 cm.-- xiv, 40 p. : ill. ; 30 cm.-- Sr. 551.435.38(921) LAKES SUMATRA 300/MS/99