Pilsbry, H. A. (1900). On the zoological position of Partula and Achatinella. Proceedings of the Academy of Natural Sciences of Philadelphia. 52: 561-567. Philadelphia.
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Pilsbry, H. A.
1900
On the zoological position of <i>Partula</i> and <i>Achatinella</i>
Proceedings of the Academy of Natural Sciences of Philadelphia
