Lanczos, C. (1970). The variational principles of mechanics (4a. ed.). Dover.
Chicago Style (17th ed.) CitationLanczos, Cornelius. The Variational Principles of Mechanics. 4a. ed. Nueva York: Dover, 1970.
MLA (9th ed.) CitationLanczos, Cornelius. The Variational Principles of Mechanics. 4a. ed. Dover, 1970.
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