APA সাইটেশন

Beer, G. d. (1971). Homology, an unsolved problem. Oxford University Press.

শিকাগো স্টাইলে সাইটেশন

Beer, Gavin de. Homology, an Unsolved Problem. Oxford University Press, 1971.

এমএলএ সাইটেশন

Beer, Gavin de. Homology, an Unsolved Problem. Oxford University Press, 1971.