APA (7th ed.) Zitazioa

Daniel, J. W. (1971). The approximate minimization of functionals. Prentice-Hall.

Chicago Style (17th ed.) Zitazioa

Daniel, James W. The Approximate Minimization of Functionals. Englewood Cliffs: Prentice-Hall, 1971.

MLA (9th ed.) Zitazioa

Daniel, James W. The Approximate Minimization of Functionals. Prentice-Hall, 1971.