000 00234nam a2200097 4500
080 _a621-1
_bHAR.79
245 _aPrinciples of engineering mechanics
100 _aHarrison, H.R
700 _aELBS
260 _aLondon
_bEdward Arnold Pub. Ltd.
_c1978
300 _a255p
999 _c30618
_d30618