Não informado. (1871). Transactions of the American Institute of Mining Engineers. American Institute of Mining Engineers.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Transactions of the American Institute of Mining Engineers. New York: American Institute of Mining Engineers, 1871.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Transactions of the American Institute of Mining Engineers. American Institute of Mining Engineers, 1871.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.