Cita APA (7th ed.)

Boyd, G. (1987). Political change and foreign policies. Frances Pinter.

Cita Chicago (17th ed.)

Boyd, Gavin. Political Change and Foreign Policies. London: Frances Pinter, 1987.

Cita MLA (9th ed.)

Boyd, Gavin. Political Change and Foreign Policies. Frances Pinter, 1987.