Não informado. (1966). Tech air. Society of Licensed Aircraft Engineers and Technologists.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Tech Air. Kingston Upon Thames, Inglaterra: Society of Licensed Aircraft Engineers and Technologists, 1966.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Tech Air. Society of Licensed Aircraft Engineers and Technologists, 1966.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.