Não informado. (1978). Brazil Trade and Industry. Fundação Visconde de Cabo Frio.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Brazil Trade and Industry. Brasília: Fundação Visconde de Cabo Frio, 1978.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Brazil Trade and Industry. Fundação Visconde de Cabo Frio, 1978.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.