Não informado. (1963). Radio and electronic engineer. Institution of Electronic and Radio Engineers.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Radio and Electronic Engineer. London: Institution of Electronic and Radio Engineers, 1963.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Radio and Electronic Engineer. Institution of Electronic and Radio Engineers, 1963.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.