000 00308nam a22001337a 4500
040 _cNust
082 _a620.1
_bSYM
100 _aSYMON
_9126101
245 _amechanics
250 _a3rd Edition
260 _aLondon:
_bAddison -Wesley publishing company,
_c1971.
650 _amechanics
942 _2ddc
_cBK
999 _c611852
_d611852