Eames, John (1743-01-01). "X. An account, by Mr. John Eames, F. R. S. of a book intituled, Jacobi Theodori Klein Historiæ Piscium Naturalis promovendæ Missus primus Gedani, 1740. 4to; Or, the first number of an essay towards promoting the natural history of fishes, by Mr. Klein, Secretary of Dantzick, and F. R. S". Philosophical Transactions. 42 (462): 27–33. doi:10.1098/rstl.1742.0014. ISSN0261-0523.
Collinson, Peter (1759-01-01). "XL. A letter to the Honourable J. Th. Klein, Secretary to the city of Dantzick, from Mr. Peter Collinson, F. R. S. concerning the migration of swallows". Philosophical Transactions. 51: 459–464. doi:10.1098/rstl.1759.0042. ISSN0261-0523. S2CID186213150.
Parker, G. H. (1918). "A Critical Survey of the Sense of Hearing in Fishes". Proceedings of the American Philosophical Society. 57 (2): 69–98. JSTOR984161.
Collinson, Peter (1759-01-01). "XL. A letter to the Honourable J. Th. Klein, Secretary to the city of Dantzick, from Mr. Peter Collinson, F. R. S. concerning the migration of swallows". Philosophical Transactions. 51: 459–464. doi:10.1098/rstl.1759.0042. ISSN0261-0523. S2CID186213150.
"Klein, Jacob Theodor". ADB:Klein, Jacob Theodor – Wikisource. Allgemeine Deutsche Biographie (in German). Duncker & Humblot. 1882. p. 92. Retrieved 2018-05-03. {{cite book}}: |website= ignored (help)
Eames, John (1743-01-01). "X. An account, by Mr. John Eames, F. R. S. of a book intituled, Jacobi Theodori Klein Historiæ Piscium Naturalis promovendæ Missus primus Gedani, 1740. 4to; Or, the first number of an essay towards promoting the natural history of fishes, by Mr. Klein, Secretary of Dantzick, and F. R. S". Philosophical Transactions. 42 (462): 27–33. doi:10.1098/rstl.1742.0014. ISSN0261-0523.
Collinson, Peter (1759-01-01). "XL. A letter to the Honourable J. Th. Klein, Secretary to the city of Dantzick, from Mr. Peter Collinson, F. R. S. concerning the migration of swallows". Philosophical Transactions. 51: 459–464. doi:10.1098/rstl.1759.0042. ISSN0261-0523. S2CID186213150.