Cita APA (7a ed.)

Boyd, A. (1991). An atlas of world affairs (9th ed.). Routledge.

Cita Chicago Style (17a ed.)

Boyd, Andrew. An Atlas of World Affairs. 9th ed. London: Routledge, 1991.

Cita MLA (9a ed.)

Boyd, Andrew. An Atlas of World Affairs. 9th ed. Routledge, 1991.