00682     2200229   4500001002100000005001500021035002000036007000300056008004100059020000600100082000800106084001400114100003200128245010800160250000600268260003500274300003000309700003600339650002300375520003700398990001700435INLIS00000000000010720251208104326  a0010-0323000001ta251208                j          0 ind    a-  a525  a525 LAA b0 aLaabs Gerald ( Pengarang  )1 aBumi dan angkasa :bwidya wiyata pertama anak - anak /cGerald Laabs ; editor , Willikoen ; Widyatamara  a-  aJakarta :bTira Pustaka,c1988  a87 :bilus. ;c30.5 cme-0 aJones, Ronald K ( Alih bahasa ) 4aBumi, Ensiklopedia  aDisadur dari : Mengapa? Mengapa?  a00045/R/1992