Cita APA (7th ed.)

East, W. G., & Moodie, A. (1956). The changing world: Studies in political geography. World Book Co.

Cita Chicago (17th ed.)

East, William Gordon, i A.E Moodie. The Changing World: Studies in Political Geography. Yonkers-on-Hudson, N.Y: World Book Co, 1956.

Cita MLA (9th ed.)

East, William Gordon, i A.E Moodie. The Changing World: Studies in Political Geography. World Book Co, 1956.