Parker, N. (2001). As revoluções e a história. Temas e Debates.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিParker, Noel. As Revoluções E a História. Temas e Debates, 2001.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিParker, Noel. As Revoluções E a História. Temas e Debates, 2001.
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