APA (7th ed.) Citation

Krylov, N. M., & Bogoljubov, N. N. (1959). Introduction to non-linear mechanics (5. print.). Princeton Univ. Press [u.a.].

Chicago Style (17th ed.) Citation

Krylov, Nikolaj M., and Nikolaj N. Bogoljubov. Introduction to Non-linear Mechanics. 5. print. Princeton, NJ: Princeton Univ. Press [u.a.], 1959.

MLA (9th ed.) Citation

Krylov, Nikolaj M., and Nikolaj N. Bogoljubov. Introduction to Non-linear Mechanics. 5. print. Princeton Univ. Press [u.a.], 1959.