Owens, Richard N.
Business management and public policy / Richard N. Owens
Homewood, Ill. Richard D. Irwin, Inc , 1958
 Buku Teks
Farmer, Paul
EC Tax Law/Paul Farmer, Richard Lyal
Clarendon Press, 1994
 Buku Teks
Demers, Richard A.
A linguistics workbook / Richard A. Demers, Ann K. Farmer
MIT Press, 1991
 Buku Teks
Frye, Richard N.
Iran / Richard N. Frye
Henry Holt and Company, 1953
 Buku Teks
Frye, Richard N.
Iran / Richard N. Frye
Allen & Unwin , 1960
 Buku Teks