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Millar, John, B. Eng. (Hons.)
2d ed.
Lancashire, Rochdale, E. Wrigley & Sons Ltd.
1977, c19
246 p. : ill. ;
Bibliography: p. 238.
Heap, William,1826-1912.
Heap and Partners Ltd.
Civil engineering. Great Britain. History.
Civil engineering. Canada. History.
Includes index.
TAB 35