Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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