000 00337cam a2200145 4500
008 721018s1972 nyu 000 0 eng
020 _a0060137398
082 0 0 _a301.243
_bSAL
100 1 _aSalk, Jonas
245 1 0 _aMan unfolding
250 _a1st ed.
260 _aNew York
_bHarper & Row
_c1972
300 _axix, 118 p.
942 _2ddc
999 _c6475
_d6475