000 00275nam a2200109 a 4500
008 101206s1989|||| d
245 1 0 _aExploring your world
260 _bNational geographic society
_aWashington, D.C.
_c1989
020 _c10
041 _aeng
044 _axo
_cSK
999 _c13774
_d13774