Não informado. (1983). Training and Education. Library Association, Training and Education Group.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Training and Education. London: Library Association, Training and Education Group, 1983.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Training and Education. Library Association, Training and Education Group, 1983.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.