Lehmann, W. P. (1963). Historical linguistics :: An introduction. Holt, Rinehart and Winston.
Cita Chicago Style (17a ed.)Lehmann, Winfred P. Historical Linguistics :: An Introduction. New York: Holt, Rinehart and Winston, 1963.
Cita MLA (8a ed.)Lehmann, Winfred P. Historical Linguistics :: An Introduction. Holt, Rinehart and Winston, 1963.
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