APA aipamena

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

Chicago Style aipamena

Gelfand, Izrail Moiseevich, S. V. Fomin, and Richard A. Silverman. Calculus of Variations. Englewood Cliffs, NJ: Prentice-Hall, 1963.

MLA aipamena

Gelfand, Izrail Moiseevich, et al. Calculus of Variations. Prentice-Hall, 1963.