APA استشهاد

Headey, B. (1974). British cabinet Ministers: The role of politicians in executive office. George Allen & Unwin.

استشهاد بنمط شيكاغو

Headey, Bruce. British Cabinet Ministers: The Role of Politicians in Executive Office. London: George Allen & Unwin, 1974.

MLA استشهاد

Headey, Bruce. British Cabinet Ministers: The Role of Politicians in Executive Office. George Allen & Unwin, 1974.