Não informado. (1990). European Transactions on Telecommunications and Related Technologies. Associazione Elettrotecnica ed Elettronica Italiana.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. European Transactions on Telecommunications and Related Technologies. Milano, Italia: Associazione Elettrotecnica ed Elettronica Italiana, 1990.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. European Transactions on Telecommunications and Related Technologies. Associazione Elettrotecnica ed Elettronica Italiana, 1990.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.