Preobrazhensky, A. G.
Etymological dictionary of the Russian language
Columbia University Press, 1951
 Buku Referensi
Partridge, Eric, 1894-1979
Origins : an etymological dictionary of modern English
Routledge, 1991
 Buku Referensi
Weekley, Ernest
An etymological dictionary of modern English : volume II
Dover Publications, 1967
 Buku Referensi
Partridge, Eric, 1894-1979
Origins : a short etymological dictionary of modern English
Macmillan, 1959
 Buku Referensi
Weekley, Ernest
An etymological dictionary of modern English : volume I
Dover Publications, 1967
 Buku Referensi