APA (7th ed.) Citation

V. A. Steklov Mathematical Institute, Leningrad, & Babich, V. M. (1972). Mathematical problems in wave propagation theory. Consultants Bureau.

Chicago Style (17th ed.) Citation

V. A. Steklov Mathematical Institute, Leningrad, and V. M. Babich. Mathematical Problems in Wave Propagation Theory. New York: Consultants Bureau, 1972.

MLA (9th ed.) Citation

V. A. Steklov Mathematical Institute, Leningrad, and V. M. Babich. Mathematical Problems in Wave Propagation Theory. Consultants Bureau, 1972.