Findley, Roger W., author
West Publishing, 1996
Buku Teks
West Publishing Co, 1993
Buku Referensi
Findley, Roger W., author
West Publishing, 1992
Buku Teks
edited by Erica l. Dolgin and Thomas G.P. Guilbert
West Publishing, 1997
Buku Teks
edited by Mary Robinson Sive
Frederick A. Praeger, 1976
Buku Teks