00309nam a22001097a 450000500170000000800410001705000130005810000140007124500450008526000480013030000210017820260522141537.0260522b        |||||||| |||| 00| 0 eng d  aQC123.S5  aSingh, S.  aEngineering mechanics /cby Sadhu, Singh  aNew DelhibOxford & IBH Publishing Coc1983  aviii, 473p.bHbk