APA Edition Citation

Der byshire, J. D., & Derbyshire, L. (1990). Political systems of the world.

Chicago Edition Citation

Der byshire, J Denis, and Lan Derbyshire. Political Systems of the World. New Delhi, Allied, 1990.

MLA Edition Citation

Der byshire, J Denis, and Lan Derbyshire. Political Systems of the World. 1990.

Warning: These citations may not always be 100% accurate.