Template:Pilsbry & Cooke, 1915

• Pilsbry, H.A.; Cooke, C.M. 1915-1916: Manual of Conchology. Second Series: Pulmonata. Vol. XXIII [= 23]. Appendix to Amastridæ. Tornatellinidæ. Index, vols. XXI-XXIII. Philadelphia. AnimalBase  
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