Barbour, A. D., & Chen, L. H. Y. (2005). An introduction to Stein's method. Singapore University Press ; World Scientific.

Barbour, A. D., and Louis H. Y. Chen. An Introduction to Stein's Method. Singapore : Hackensack, N.J.: Singapore University Press ; World Scientific, 2005.

Barbour, A. D., and Louis H. Y. Chen. An Introduction to Stein's Method. Singapore University Press ; World Scientific, 2005.