Robert ashton. (2007). The life plan: 700 simple ways to change your life for the better. Pearson education.
Chicago Style citaatRobert ashton. The Life Plan: 700 Simple Ways to Change Your Life for the Better. New delhi: Pearson education, 2007.
MLA citatieRobert ashton. The Life Plan: 700 Simple Ways to Change Your Life for the Better. Pearson education, 2007.
Let op: Deze citaties zijn niet altijd 100% accuraat.