Buckingham, R. A. (1962). Numerical methods (Rev. ed.). Pitman.
Lua i Stíl Chicago (17ú heag.)Buckingham, R. A. Numerical Methods. Rev. ed. London: Pitman, 1962.
Lua MLA (8ú heag.)Buckingham, R. A. Numerical Methods. Rev. ed. Pitman, 1962.
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