Cita APA (7th ed.)

Boyd, A. (1998). An atlas of world affairs (10a. ed.). Routledge.

Cita Chicago (17th ed.)

Boyd, Andrew. An Atlas of World Affairs. 10a. ed. Londres: Routledge, 1998.

Cita MLA (9th ed.)

Boyd, Andrew. An Atlas of World Affairs. 10a. ed. Routledge, 1998.