00321nam a2200097Ia 4500008004100000082002300041100003100064245008500095260002800180300001500208260702b        |||||||| |||| 00| 0 eng d  a016.50954bN277.IS  aNational Library, Calcutta  aIndian scientific and technical publications exhibition 1960b; a bibliography /  aNew Delhi:bCSIR,c1960  axii, 198p.