Cita APA (7th ed.)

BOYD, A. (1985). An atlas of world affairs.-- ed.7. Methuen.

Cita Chicago (17th ed.)

BOYD, Andrew. An Atlas of World Affairs.-- Ed.7. London: Methuen, 1985.

Cita MLA (9th ed.)

BOYD, Andrew. An Atlas of World Affairs.-- Ed.7. Methuen, 1985.