Gelʹfand, I. M., Fomin, S. V., & Silverman, R. A. (2000). Calculus of variations. Dover Publications.
Chicago Edition CitationGelʹfand, I. M., S. V. Fomin, i Richard A. Silverman. Calculus of Variations. Mineola, N.Y.: Dover Publications, 2000.
Cita MLAGelʹfand, I. M., et al. Calculus of Variations. Dover Publications, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.