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শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিQueen, Ellery. Era Uma Vez Uma Velha. Europa-América, 1992.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিQueen, Ellery. Era Uma Vez Uma Velha. Europa-América, 1992.
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