APA (7 ম সংস্করণ) উদ্ধৃতি

Kupchella, C. I., & Kupchella, C. I. (1986). Environmental Science: Living Within System Of Nature / Charles E. Kupchella. Allyn and Bacon.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Kupchella, Charles I., এবং Charles I. Kupchella. Environmental Science: Living Within System Of Nature / Charles E. Kupchella. Allyn and Bacon, 1986.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Kupchella, Charles I., এবং Charles I. Kupchella. Environmental Science: Living Within System Of Nature / Charles E. Kupchella. Allyn and Bacon, 1986.