Não informado. (1969). Monographs in computer science and computer applications. PUC-RJ, Computer Science Department.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Monographs in Computer Science and Computer Applications. Rio de Janeiro: PUC-RJ, Computer Science Department, 1969.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Monographs in Computer Science and Computer Applications. PUC-RJ, Computer Science Department, 1969.
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