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| Author | : | Müllerried, F.K.G. |
| Year of publication | : | 1936 |
| Reference letter | : | a |
| Title | : | La edad estratigráfica de la Barrettia y formas cercanas. |
| Journal | : | Anales del Instituto de Biología |
| Vol/No/Pages/Plates | : | 7: 155-164 |
| Published in | : | Mexico City |