Webster's new collegiate dictionary : fifth edition
G & C Merriam Co., 1947
Buku Referensi
Webster's new collegiate dictionary
G & C Merriam Co., 1961
Buku Referensi
Webster's ninth new collegiate dictionary
Merriam-Webster,
Buku Referensi
Webster's seventh new collegiate dictionary. Based on Webster's third new international dictionary
G & C Merriam Co., [1971]
Buku Referensi
New Webster's dictionary of the English language : college edition
Delair Publishing Company, 1981
Buku Referensi