Here’s how Kelly and Michele O’Donnell answered:

Project Management Memory Jogger: Pocket Guide for Project Teams (2010, rev.), Martin/Tate

The One Minute Manager Builds High Performing Teams (2009, revised edition), Ken Blanchard

Working Virtually: Managing People for Successful Virtual Teams/Organizations (2003), Hoefling

Teamwork: How to Build Relationships (2003), Gordon Jones and Rosemary Jones

Five Dysfunctions of a Team: A Leadership Fable (2002), Patrick Lencioni

The Discipline of Teams: A Workbook… (2001), Katzenbach/Smith

The 17 Indisputable Laws of Teamwork (2001), John Maxwell

Building Credible Multicultural Teams (2000), Leanne Roembke

(Thanks Kelly and Michele!)