Cita APA (7a ed.)

Utton, M. A. (1982). Domestic concentration and international trade. [s.n.].

Cita Chicago Style (17a ed.)

Utton, Michael Arthur. Domestic Concentration and International Trade. [S.l.]: [s.n.], 1982.

Cita MLA (9a ed.)

Utton, Michael Arthur. Domestic Concentration and International Trade. [s.n.], 1982.