Não informado. (2016). Bi-Monthly Research Notes. Canadian Forestry Service, Department of Environment.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Bi-Monthly Research Notes. Ottawa: Canadian Forestry Service, Department of Environment, 2016.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Bi-Monthly Research Notes. Canadian Forestry Service, Department of Environment, 2016.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.