Mineral aggregate study of the Central Ontario Planning Region
By: prepared for the Ontario Ministry of Natural Resources by Proctor and Redfern Ltd., Consulting Engineers and Planners.
Contributors: Ontario. Ministry of Natural Resources
Publisher: Ministry of Natural Resources
Published: 1974
Place of publication: Toronto, Ont
Language: eng
Number of pages: 114
Subjects: Aggregates (Building materials) -- Ontario.
Notes: Bibliogr.

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