APA (7th ed.) Citation
Bobylev, N. A., Burman, Y. M., & Korovin, S. K. (1994). Approximation procedures in nonlinear oscillation theory. W. de Gruyer.
Chicago Style (17th ed.) Citation
Bobylev, N. A., Yu. M. Burman, and S. K. Korovin. Approximation Procedures in Nonlinear Oscillation Theory. Berlin ; New York: W. de Gruyer, 1994.
MLA (9th ed.) Citation
Bobylev, N. A., et al. Approximation Procedures in Nonlinear Oscillation Theory. W. de Gruyer, 1994.
Warning: These citations may not always be 100% accurate.