000 00407pam a2200157a 44500
008 160408b1969 xxu||||| |||| 00| 0 eng d
082 _a620.1
_bG862i
100 _aGregory, M. S.
245 1 _aINTRODUCTION TO EXTREMUM PRINCIPLES
260 _aLondon
_bButterworths
_c1969
300 _a196
500 _aIncludes Bibliography
650 _aMechanics, Applied
964 _gCIRC
997 _aA7574 s C
999 _c262498
_d262498