000 00421nam a2200157 4500
999 _c1349
_d1349
008 200122b ||||| |||| 00| 0 eng d
020 _a0340149523
082 0 0 _a621
_bW1772
100 _9763
_aWalker, J. D.
245 1 0 _aCertificate mechanical engineering science
_cby J. D. Walker
250 _a2nd ed.
260 _aLondon
_bEUP
_c1973
300 _axii, 290 p.
650 0 _aMechanical Engineering
942 _2ddc
_cBK