000 00388 a2200157 4500
020 _a0870445219
041 _aEn
082 _a608
_bMAR
100 _aMartin , Paul D.
245 _aScience
_bit\'s changing your world
260 _c1985
_aWashington
_bNational Geographic Society
_g1985
300 _bill.
_c27 cm.
_a104 p.
650 _aTECHNOLOGY
650 _aINVENTIONS
942 _cLN
999 _c26428
_d27975