Johnes, A. J., & Joly, J. R. (1843). Philological proofs of the original unity and recent origin of the human race.: Derived from a comparison of the languages of Asia, Europe, Africa, and America. Being an inquiry how far the differences in the languages of the globe are referrible to causes now in operation. S. Clarke.

Johnes, Arthur James, and Jaspar Robert Joly. Philological Proofs of the Original Unity and Recent Origin of the Human Race.: Derived from a Comparison of the Languages of Asia, Europe, Africa, and America. Being an Inquiry How Far the Differences in the Languages of the Globe Are Referrible to Causes Now in Operation. S. Clarke, 1843.