American Enterprise Institute for Public Policy Research. (1990). The American enterprise. American Enterprise Institute for Public Policy Research.
Chicago-referens (17:e uppl.)American Enterprise Institute for Public Policy Research. The American Enterprise. Washington, D.C.: American Enterprise Institute for Public Policy Research, 1990.
MLA-referens (9:e uppl.)American Enterprise Institute for Public Policy Research. The American Enterprise. American Enterprise Institute for Public Policy Research, 1990.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.