Cita APA (7a ed.)

Gelfand, I. M., Fomin, S. V., & Silverman, R. A. (1963). Calculus of variations (Rev. english ed.). Prentice-Hall.

Cita Chicago Style (17a ed.)

Gelfand, I. M., S. V. Fomin, y Richard A. Silverman. Calculus of Variations. Rev. english ed. Englewood Cliffs, New Jersey: Prentice-Hall, 1963.

Cita MLA (9a ed.)

Gelfand, I. M., et al. Calculus of Variations. Rev. english ed. Prentice-Hall, 1963.