APA (7 ম সংস্করণ) উদ্ধৃতি

British Geomorphological Research Group, Douglas, I., & Spencer, T. (1985). Environmental change and tropical geomorphology. Allen & Unwin.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

British Geomorphological Research Group, Ian Douglas, এবং T. Spencer. Environmental Change and Tropical Geomorphology. London: Allen & Unwin, 1985.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

British Geomorphological Research Group, et al. Environmental Change and Tropical Geomorphology. Allen & Unwin, 1985.