000 00298nam a2200121Ia 4500
008 220201s1972 xx 000 0 eng d
082 _bDEZ
100 _aDezzettel, Louis M.
245 0 _aRecord changers how they work
260 _abombay
_bD.B. Taraporevala
_c1972
300 _a144
942 _2ddc
999 _c22299
_d22299