APA (7th ed.) Citation

Spencer. (2004). The heart of leadership: Unlock your inner wisdom and inspire others. Rider.

Chicago Style (17th ed.) Citation

Spencer. The Heart of Leadership: Unlock Your Inner Wisdom and Inspire Others. London: Rider, 2004.

MLA (8th ed.) Citation

Spencer. The Heart of Leadership: Unlock Your Inner Wisdom and Inspire Others. Rider, 2004.

Warning: These citations may not always be 100% accurate.