This book can be used either as a self-study book or as a supplement
to your textbook. You can select the lessons that are appropriate for your
needs.
Best wishes on your success.Acknowledgments
I would like to thank my wife, Betty Claire, for helping me with this project,
and I wish to express my gratitude to my editor Judy Bass and to Carrie
Green for their assistance in the publication of this book.x PREFACE