Trider, G. L.

Estimate of the capital and operating costs of sewage collection and treatment for municipalities in Nova Scotia / by G. L. Trider, P. Eng. Staff Engineer ; Under the direction of A. J. Crouse, P. Eng. Technical Director.  Halifax : Nova Scotia Water Resources Commission, 1971.  1 volume (unnumbered) : some fold. p. graph, tables ; 28 cm.

Nova Scotia Research Foundation. Operational Research Division

A regional approach to the greater Halifax-Dartmouth area water supply- / prepared for Nova Scotia Water Resources Commission by Operational Research Division, Nova Scotia Research Foundation.  Halifax : the Division, 1969. iv, 33 pages; map (some folded) charts; 28 cm.