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| Author | : | Perkins, B.F. |
| Year of publication | : | 1960 |
| Title | : | Biostratigraphic studies in the Comanche (Cretaceous) Series of northern Mexico and Texas. |
| Journal | : | Geological Society of America, Memoir |
| Vol/No/Pages/Plates | : | 83: 138 pp., 26 figs., 34 pls. |
| Published in | : | Boulder, Colorado |