The Permo-Carboniferous red bed of North American and their vertebrate fauna
| मुख्य लेखक: | |
|---|---|
| स्वरूप: | पुस्तक |
| प्रकाशित: |
Washington, D.C.
Carnegie institution of Washington
1915.
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| श्रृंखला: | Carnegie Institution of Washington publication
207. |
| विषय: |