[Beck 2002b] Beck, Kent, XP and Culture Change, Cutter IT Journal, Cutter Consortium, Oct 2002.
Kent Beck discusses culture change required for Extreme Programming from the standpoint of the various stakeholders, especially developers and managers. You should be able to get a copy of this publication from www.cutter.com.
[Cockburn 2001] Cockburn, Alistair, Agile Software Development, Addison-Wesley, 2001.
Many factors with the physical work environment and the impact it can have on agile development are described in this book.
[Crane 2002] Crane, Thomas G., The Heart of Coaching, FTA Press, 2002.
This is one of my favorite books on coaching. There is a very useful chapter on culture change and the role that individual and team coaching plays in achieving culture change.
[Kotter 1996] Kotter, John P., Leading Change, Harvard Business School Press, 1996.
This book describes the problems that are commonly faced when attempting culture change in an organization. The value of the book is in the strategy that is outlined for achieving change.
[Lindval et al 2004] Mikael Lindval, Dirk Muthig, Aldo Dagnino, Christina Wallin, Michael Stupperich, David Kiefer, John May, and Tuomo Kahkonen, Agile Software Development in Large Organizations, IEEE Computer, December 2004.
The authors of this paper outline a number of good points related to attempting to introduce agile development into large organizations such as Motorola, Nokia, and DaimlerChrysler.