00310nam a22001337a 4500003000400000005001700004008004100021020002000062040000800082082000800090100000900098245003500107260003400142OSt20220114111023.0220114b        |||||||| |||| 00| 0 eng d  a139788185749617  cH.U  a604  aGill  aEngineering Graphics &Drafting  aNew DelhibS.K Kataria c2014