APA (7 ম সংস্করণ) উদ্ধৃতি

Todes, D. P. (1989). Darwin without Malthus: The struggle for existence in Russian evolutionary thought. Oxford University Press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Todes, Daniel Philip. Darwin Without Malthus: The Struggle for Existence in Russian Evolutionary Thought. New York: Oxford University Press, 1989.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Todes, Daniel Philip. Darwin Without Malthus: The Struggle for Existence in Russian Evolutionary Thought. Oxford University Press, 1989.