American Enterprise Institute for Public Policy Research. (1990). The American enterprise. American Enterprise Institute for Public Policy Research.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)American Enterprise Institute for Public Policy Research. The American Enterprise. Washington, D.C.: American Enterprise Institute for Public Policy Research, 1990.
MLA -ийн эшлэл (9 дэх хэвлэлт)American Enterprise Institute for Public Policy Research. The American Enterprise. American Enterprise Institute for Public Policy Research, 1990.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.