Beer, G. d. (1971). Homology, an unsolved problem. Oxford University Press.
Chicago Style aipamenaBeer, Gavin de. Homology, an Unsolved Problem. Oxford University Press, 1971.
MLA aipamenaBeer, Gavin de. Homology, an Unsolved Problem. Oxford University Press, 1971.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.