Mollusks
Bartsch, P. (1931). Mollusks, in: Bassler, R.S. et al. Shelled invertebrates of the past and present: with chapters on geological history. Smithsonian Scientific Series, 10: pp. 251-356
In: Bassler, R.S. et al. (1931). Shelled invertebrates of the past and present: With chapters on geological history. Smithsonian Scientific Series, 10. Smithsonian Institution Series: New York. 365 pp., meer
In: Greeley, C. (Ed.) Smithsonian Scientific Series. ISSN 1145-7800, meer
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