Widder, D. R. (2000). Advanced calculus. Prentice-Hall.
Chicago Style (17th ed.) ZitazioaWidder, David R. Advanced Calculus. New Delhi: Prentice-Hall, 2000.
MLA (9th ed.) ZitazioaWidder, David R. Advanced Calculus. Prentice-Hall, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.