APA Citation

 Kamchatnov, A. M. (2000).  Nonlinear periodic waves and their modulations: An introductory course.  World Scientific.

Chicago Style Citation

 Kamchatnov, A. M.  Nonlinear Periodic Waves and Their Modulations: An Introductory Course.  World Scientific, 2000.

MLA Citation

 Kamchatnov, A. M.  Nonlinear Periodic Waves and Their Modulations: An Introductory Course.  World Scientific, 2000.

Warning: These citations may not always be 100% accurate.