Webster's tower dictionary : illustrated : a comprehensive vocabulary of clear, concise definitions, with selected reference material
World Publishing Co, 1956
 Buku Referensi
Webster's new world dictionary of the American language : concise edition
David B. Guralnik, general editor
The World Publishing Co., 1956
 Buku Referensi
Webster's new collegiate dictionary
G & C Merriam Co., 1961
 Buku Referensi
The new Webster's dictionary
Lexicon Publication, 1993
 Buku Referensi
New Webster's dictionary
Groiler
Grolier Incorporated, 1992
 Buku Referensi