Gelfand, I. M., & Fomin, S. V. (1963). Calculus of variations tr from the Russian and ed by Richard A Silverman.
Chicago Edition CitationGelfand, I. M., and S. V. Fomin. Calculus of Variations Tr from the Russian and Ed by Richard A Silverman. 1963.
MLA Edition CitationGelfand, I. M., and S. V. Fomin. Calculus of Variations Tr from the Russian and Ed by Richard A Silverman. 1963.
Warning: These citations may not always be 100% accurate.