Problem-Solving Strategies (Problem Books in Mathematics)

Problem-Solving Strategies (Problem Books in Mathematics) by Engel

TRAINING STRATEGIES FOR CRISIS AND HOSTAGE NEGOTIATIONS: By Arthur A. Slatkin

Problem-Solving Strategies by Arthur Engel: New Never Used 1998

Strengthening Your Firm: Strategies for Success (By Arthur G. Greene)

Problem-Solving Strategies by Arthur Engel: New

Asst Protection Planning Guide by Barry Engel (2005, Trade Paperback)