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1913 Coal Fields, France. Coal Re … Geologic Atlas McInnes, William; Dowling, D … |
1913 Coal Fields, France. Coal Re … Geologic Atlas McInnes, William; Dowling, D … |
1913 Coal Fields, France. Coal Re … Geologic Atlas McInnes, William; Dowling, D … |
1913 Coal Fields, France. Coal Re … Geologic Atlas McInnes, William; Dowling, D … |
1913 Coal Fields, France. Coal Re … Geologic Atlas McInnes, William; Dowling, D … |
1913 Cross-sections in France. Co … Geologic Atlas McInnes, William; Dowling, D … |