APA (7th ed.) Citation

Lavrentʹev, M. A., & Radok, J. R. M. (1989). Variational methods for boundary value problems for systems of elliptic equations. Dover Publications.

Chicago Style (17th ed.) Citation

Lavrentʹev, M. A., and J. R. M. Radok. Variational Methods for Boundary Value Problems for Systems of Elliptic Equations. New York: Dover Publications, 1989.

MLA (8th ed.) Citation

Lavrentʹev, M. A., and J. R. M. Radok. Variational Methods for Boundary Value Problems for Systems of Elliptic Equations. Dover Publications, 1989.