APA
Lehmann W. P., . (1962). Historical Linguistics: an Introduction. Oxford & IBH publishing co., Calcutta: .
Chicago
Lehmann Winfred P, . 1962. Historical Linguistics: an Introduction. Oxford & IBH publishing co., Calcutta: .
Harvard
Lehmann W. P., . (1962). Historical Linguistics: an Introduction. Oxford & IBH publishing co., Calcutta: .
MLA
Lehmann Winfred P, . Historical Linguistics: an Introduction. Oxford & IBH publishing co., Calcutta: . 1962.