Não informado. Photographic Science and Engineering. Society of Photographic Scientists and Engineers.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Photographic Science and Engineering. Washington: Society of Photographic Scientists and Engineers.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Photographic Science and Engineering. Society of Photographic Scientists and Engineers.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.