Sand and gravel in southern Ontario, 1967-68
By: by D. F. Hewitt and W. R. Cowan.
Contributors: Cowan, W. R., joint author.
Series: Industrial mineral report ;; 29; Industrial mineral report (Ontario. Dept. of Mines) ;; 29.
Publisher: Dept. of Mines
Published: 1969
Place of publication: [Toronto]
Language: eng
Number of pages: 105
Subjects: Sand -- Ontario.; Gravel -- Ontario.
Notes: Bibliography: p. 105.