Gaya APA

Bowell, R, A. (2004). 7 The Steps of Spiritual Intelligence: The Practical Pursuit of Purpose, Success and Happiness . Boston: Nicholas Brealey Publishing.

Gaya MLA

Bowell, Richard, A.. "7 The Steps of Spiritual Intelligence: The Practical Pursuit of Purpose, Success and Happiness". Boston: Nicholas Brealey Publishing, 2004. Text.