Green, J. A. (1965). Sets and groups. Routledge & Kegan Paul.
Chicago Style aipamenaGreen, J A. Sets and Groups. London: Routledge & Kegan Paul, 1965.
MLA aipamenaGreen, J A. Sets and Groups. Routledge & Kegan Paul, 1965.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.