APA (7 ম সংস্করণ) উদ্ধৃতি

Darwin, C. (1999). The origin of species by means of natural selection or the preservation of favoured races in the struggle for life. Bantam Books.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Darwin, Charles. The Origin of Species by Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. Bantam Books, 1999.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Darwin, Charles. The Origin of Species by Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. Bantam Books, 1999.