Hershler, R., & Davis, G. M. (1980). THE MORPHOLOGY OF HYDROBIA TRUNCATA (GASTROPODA: HYDROBIIDAE): RELEVANCE TO SYSTEMATICS OF HYDROBIA. Zenodo.
Lua i Stíl Chicago (17ú heag.)Hershler, Robert, agus George M. Davis. THE MORPHOLOGY OF HYDROBIA TRUNCATA (GASTROPODA: HYDROBIIDAE): RELEVANCE TO SYSTEMATICS OF HYDROBIA. Zenodo, 1980.
Lua MLA (9ú heag.)Hershler, Robert, agus George M. Davis. THE MORPHOLOGY OF HYDROBIA TRUNCATA (GASTROPODA: HYDROBIIDAE): RELEVANCE TO SYSTEMATICS OF HYDROBIA. Zenodo, 1980.
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