Cita APA

Derbyshire, J. D., & Derbyshire, I. (1989). Chambers political systems of the world. Chambers.

Citación estilo Chicago

Derbyshire, J. Denis, and Ian Derbyshire. Chambers Political Systems of the World. Edinburgh: Chambers, 1989.

Cita MLA

Derbyshire, J. Denis, and Ian Derbyshire. Chambers Political Systems of the World. Chambers, 1989.

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