MLA

Ibragimov, Nail H, et al. Approximate and Renormgroup Symmetries. Springer Berlin Heidelberg, 2009.

APA

Ibragimov, N. H, Kovalev, V. F, Luo, A. C. J, & Vladimir F. Kovalev, V. F. Kovalev. (2009). Approximate and Renormgroup Symmetries. Springer Berlin Heidelberg.

Chicago

Ibragimov, Nail H., Vladimir F Kovalev, Albert C. J Luo, and Vladimir F. Kovalev. Approximate and Renormgroup Symmetries. : Springer Berlin Heidelberg, 2009.