00294nam a22001097a 4500003000400000008004100004082001700045100001800062245005900080260003700139300000800176OSt230614b        |||||||| |||| 00| 0 eng d  a631.62bF60M  aTheobald,C.H.  aMethods of & Mechanics for Tiles& Others Tube Drainage  aOxford Book, DelhibF.A.O.c1963  a104