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eBook, 1989
Current format, eBook, 1989, , All copies in use.
eBook, 1989
Current format, eBook, 1989, , All copies in use. Offered in 0 more formats
This collection of leters from the early 1920s to the late 1940s by Dr. Karl A. Clark chronicles the development of the hot water separation process for producing oil from the Athabasca oil sands in Alberta.
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