By:
Twenhofel, William H. (William Henry), 1875-1957.
Publication Date:
1947
Format:
Books
By:
Shrock, Robert Rakes, 1904- Twenhofel, William H. (William Henry), 1875-1957. Geological Survey of Newfoundland.
Publication Date:
1939
Format:
Books
By:
Twenhofel, William H. (William Henry), 1875-1957. Shrock, Robert Rakes, 1904- Heyl, George Richard, 1909- Silurian strata of White Bay, Newfoundland.
Publication Date:
1937
Format:
Books
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