The Power Principle 
Subtitle: Influence With Honor (Cassette)
Publisher: Covey
Published: October 1, 2001
Language: eng
Format: Audio Cassette
ISBN-13: 9781883219956
Subjects: Success; Power (Social sciences); Interpersonal relations; Abridged Audio - Business/Professional; Unabridged Audio - Business/Professional; Audio Adult: Other; Psychological aspects; Business Life - Inspirational; Leadership; Personal Growth - General; Self-Help / Motivational