000 00375pam a2200133a 44500
040 _aP K Kelkar Library, IIT Kanpur
082 _a694
_bG767s
100 _aGrant, David
245 1 _aSteel square
_bits use and mechanism
_cDavid Grant
260 _aLondon
_bThe Caxton Publishing
_c1960
300 _av, 58p
650 _aCarpenter's square
997 _a11664 cop.3 C
999 _c409774
_d409774