Webster's third new international dictionary of the English language unabridged
editor, Philip Babcock Gove
Merriam-Webster, 1993
Buku Referensi
Webster's third new international dictionary : of the English language unabridged with seven language dictionary : volume I
Encyclopaedia Britannica, 1981
Buku Referensi
Webster's third new international dictionary : of the English language unabridged with seven language dictionary : volume II
Encyclopaedia Britannica, 1981
Buku Referensi
Webster's third new international dictionary : of the English language unabridged with seven language dictionary : volume III
Encyclopaedia Britannica, 1981
Buku Referensi
New Webster's dictionary of the English language : college edition
Delair Publishing, 1981
Buku Referensi