GUPTA, S. (1975). Fundamental real analysis. Vikas publishing.
Chicago Style (17th ed.) ZitazioaGUPTA, S.L. Fundamental Real Analysis. New Delhi: Vikas publishing, 1975.
MLA (9th ed.) ZitazioaGUPTA, S.L. Fundamental Real Analysis. Vikas publishing, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.