Punnett, R. M. (1987). British Government and Politics (15th ed.). Gower Publishing Company Limited.
Citazione stile Chigago Style (17a edizione)Punnett, R. M. British Government and Politics. 15th ed. Aldershot, Hampshire: Gower Publishing Company Limited, 1987.
Citatione MLA (9a ed.)Punnett, R. M. British Government and Politics. 15th ed. Gower Publishing Company Limited, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.