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journalAt: American Journal of Botany, 41, 5 By: Fry W. L.
journalAt: Special Publication / Geological Survey of India, 11, 1 By: Banerjee M.
journalAt: Boletín de Geología / Universidad Industrial de Santander, 4 By: Huertas G., G.
bookAt: Study Silicif. Foss. Pl. Mohgaonkalan, Pune, India, University of Poona By: Deshpande S. R.
journalAt: Science reports of the Kanazawa University, 8, 1 By: Matsuo H.
journalAt: Journal of the Faculty of Science of the Hokkaido Imperial University, Series, 4, Geology and mineralogy, 7, 1 By: Ôishi S., Huzioka K.
journalAt: Geology and Palaeontology of Southeast Asia, 3 By: Endô S.
journalAt: Torreya, 27, 3 By: Cockerell T. D. A.
journalAt: University studies, University of Nebraska, 7, 4 By: Bessey C. E.