APA引文

Heertje, A. (1984). The U.S.A. in the world economy. Freeman, Cooper.

Chicago Style (17th ed.) Citation

Heertje, Arnold. The U.S.A. in the World Economy. San Francisco, CA: Freeman, Cooper, 1984.

MLA引文

Heertje, Arnold. The U.S.A. in the World Economy. Freeman, Cooper, 1984.