Foreign investment in economically underdeveloped countries International Confederation of Trade Union
Weissenbruch , 1959
 Buku Teks
Folsom, Ralph Haughwout
International trade and investment
[Publisher not identified], [Date of publication not identified]
 Buku Teks
Folsom, Ralph Haughwout
International trade and investment in a nutshell
[Publisher not identified], 2000
 Buku Teks
Folsom, Ralph Haughwout
International trade and investment in a nutshell
South-Western Publishing, 1996
 Buku Teks
Folsom, Ralph Haughwout
International trade and investment
[Publisher not identified], [Date of publication not identified]
 Buku Teks