Não informado. (1944). Surveying and mapping. American Congress on Surveying and Mapping.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Surveying and Mapping. Washington: American Congress on Surveying and Mapping, 1944.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Surveying and Mapping. American Congress on Surveying and Mapping, 1944.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.