Berry, J. B. (1966). Western forest trees: A guide to the identification of trees and woods for students, teachers, farmers and woodsmen. Dover.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিBerry, James Berthold. Western Forest Trees: A Guide to the Identification of Trees and Woods for Students, Teachers, Farmers and Woodsmen. Nueva York: Dover, 1966.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিBerry, James Berthold. Western Forest Trees: A Guide to the Identification of Trees and Woods for Students, Teachers, Farmers and Woodsmen. Dover, 1966.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.