Não informado. (1965). Government and Opposition. London School of Economics and Political Science.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Government and Opposition. London: London School of Economics and Political Science, 1965.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Government and Opposition. London School of Economics and Political Science, 1965.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.