APA

Wilson N., . (1963). The british system of government. Gran Bretana: Oxford University Press.

Chicago

Wilson Norman, . 1963. The british system of government. Gran Bretana: Oxford University Press.

Harvard

Wilson N., . (1963). The british system of government. Gran Bretana: Oxford University Press.

MLA

Wilson Norman, . The british system of government. Gran Bretana: Oxford University Press. 1963.