Não informado. (1952). Forestry Research Notes. University of Wisconsin, College of Agricultural and Life Sciences, Extension Forestry Office.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Forestry Research Notes. Madison, Wis: University of Wisconsin, College of Agricultural and Life Sciences, Extension Forestry Office, 1952.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Forestry Research Notes. University of Wisconsin, College of Agricultural and Life Sciences, Extension Forestry Office, 1952.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.