628.5406
P963                Proceedings of the twelfth industrial waste conference , May 13, 14 and 15, 1957 / School of Civil Engineering and Division of Sanitary Engineering Purdue University . - Lafayette, ind. : Purdue University,1958 . - viii,683p.; fig. . - Extension series; no.94 .

               Includes bibliography and index

Central Inland Fisheries Research Institute

CIFRI