Derbyshire, J. D., & Derbyshire, I. (1989). Chambers political systems of the world. Chambers.
Chicagoスタイル(17版)引用形式Derbyshire, J. Denis, , Ian Derbyshire. Chambers Political Systems of the World. Edinburgh: Chambers, 1989.
MLA(9版)引用形式Derbyshire, J. Denis, , Ian Derbyshire. Chambers Political Systems of the World. Chambers, 1989.
警告: この引用は必ずしも正確ではありません.