APA (7th ed.) Citation

Krylov, N. M., & Bogoljubov, N. N. (1949). Introduction to non-linear mechanics. Univ. Press.

Chicago Style (17th ed.) Citation

Krylov, Nikolaj M., and Nikolaj N. Bogoljubov. Introduction to Non-linear Mechanics. Princeton, NJ: Univ. Press, 1949.

MLA (9th ed.) Citation

Krylov, Nikolaj M., and Nikolaj N. Bogoljubov. Introduction to Non-linear Mechanics. Univ. Press, 1949.