Bogoljubov, N. N., & Mitropolʹskij, J. A. (1961). Asymptotic methods in the theory of non-linear oscillations ([2. ed.].). Hindustan Publ. Corp. [u.a.].
Chicago Style (17th ed.) CitationBogoljubov, Nikolaj N., and Jurij Alekseevič Mitropolʹskij. Asymptotic Methods in the Theory of Non-linear Oscillations. [2. ed.]. Delhi: Hindustan Publ. Corp. [u.a.], 1961.
MLA (9th ed.) CitationBogoljubov, Nikolaj N., and Jurij Alekseevič Mitropolʹskij. Asymptotic Methods in the Theory of Non-linear Oscillations. [2. ed.]. Hindustan Publ. Corp. [u.a.], 1961.
Warning: These citations may not always be 100% accurate.