MLA

Petráš, Ivo, Nail H Ibragimov, and Albert C. J Luo. Fractional-order Nonlinear Systems. Springer Berlin Heidelberg, 2011.

APA

Petráš, I., Ibragimov, N. H, & Luo, A. C. J. (2011). Fractional-Order Nonlinear Systems. Springer Berlin Heidelberg.

Chicago

Petráš, Ivo, Nail H Ibragimov, and Albert C. J Luo. Fractional-Order Nonlinear Systems. : Springer Berlin Heidelberg, 2011.