The mining of thin-coal seams as applied to the eastern coal-fields of Canada,
Brown, John Frew Kellock, 1884-
The mining of thin-coal seams as applied to the eastern coal-fields of Canada, by J. F. Kellock Brown. - Ottawa, Government printing bureau, 1917. - viii p., 1 l., 135 p. illus., fold. maps (1 in pocket) 25 cm.
gs 17000417
Coal mines and mining--Canada.
TN866.C2 / B7
The mining of thin-coal seams as applied to the eastern coal-fields of Canada, by J. F. Kellock Brown. - Ottawa, Government printing bureau, 1917. - viii p., 1 l., 135 p. illus., fold. maps (1 in pocket) 25 cm.
gs 17000417
Coal mines and mining--Canada.
TN866.C2 / B7