000 00281nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aPerspective in Education
260 _aNational Geographic Society
_bWashington
_c1 Jan-31 Dec,2001
362 _a17-17
_b01-Apr
942 _2ddc
_cJ
999 _c177618
_d177618