APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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