000			00403nam a2200145 4500
008			230719b |||||||| |||| 00| 0 eng d
010			_a98010374
020			_a0276421922
245			_aHow was it done?
250			_a1st ed.
260			_aLondon: _bThe reader's digest association ltd, _c1995.
300			_a445p. _bill.
650			_aTechnology _vHistory.
942			_cBK _hT15 .H78 1995
999			_c32006 _d32005