APA (7 ম সংস্করণ) উদ্ধৃতি

Darwin, C., Barrett, P. H., & Freeman, R. B. (1989). The formation of vegetable mould through the action of worms with observations on their habits. Pickering.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Darwin, Charles, Paul H. Barrett, এবং R. B. Freeman. The Formation of Vegetable Mould Through the Action of Worms with Observations on Their Habits. London: Pickering, 1989.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Darwin, Charles, et al. The Formation of Vegetable Mould Through the Action of Worms with Observations on Their Habits. Pickering, 1989.