Victoria Neufeldt, David B. Guralnik, editor
Webster's New World, 1988
Buku Referensi
Victoria Neufeldt, Andrew N. Sparks, editor
Simon & Schuster, 1989
Buku Referensi
Merriam-Webster, 2004
Buku Referensi
David B. Guralnik, general editor
The World Publishing Co., 1956
Buku Referensi
The World Publishing Co., 1960
Buku Referensi