MLA

Contopoulos, G, et al. Chaos In Astronomy. Springer Berlin Heidelberg, 2009.

APA

Contopoulos, G.Contopoulos, G., Patsis, P. A, Patsis, P., & Voglis, N. (2009). Chaos in Astronomy. Springer Berlin Heidelberg.

Chicago

Contopoulos, G., George Contopoulos, P. A Patsis, Peter Patsis, and Nikos Voglis. Chaos In Astronomy. : Springer Berlin Heidelberg, 2009.