APA Edition Citation

Lusternik, L. A., & Sobolev, V. J. (1965). Elements of functional analysis.

Chicago Edition Citation

Lusternik, L A., and V J. Sobolev. Elements of Functional Analysis. Frederick Ungar Publishing Co., New York, 1965.

MLA Edition Citation

Lusternik, L A., and V J. Sobolev. Elements of Functional Analysis. 1965.