This book is a result of collaborative labors of many people over a span of several decades. Coauthors of a chapter or a section are indicated in the byline to the chapter/section title. If you are referring to a specific coauthored section rather than the entire book, cite it as (for example):
C. Chandre, F.K. Diakonos and P. Schmelcher, section “Discrete cy- clist relaxation method”, in P. Cvitanovi ́c, R. Artuso, R. Mainieri, G. Tanner and G. Vattay, Chaos: Classical and Quantum (Niels Bohr Institute, Copenhagen 2005);
Chapters without a byline are written by Predrag Cvitanovi ́c. Friends whose contributions and ideas were invaluable to us but have not con- tributed written text to this book, are listed in the acknowledgements.