Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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