APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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