000 00263nam a2200109Ia 4500
008 220201s1987 xx 000 0 eng d
100 _aWALKER D
245 0 _aGREAT ENGINEERING : 1837-1937
260 _aDELHI
_bACADEMIC PRESS
_c1987
300 _a298
942 _2ddc
999 _c92025
_d92025