Robert ashton. (2007). The life plan: 700 simple ways to change your life for the better. Pearson education.
Style de citation ChicagoRobert ashton. The Life Plan: 700 Simple Ways to Change Your Life for the Better. New delhi: Pearson education, 2007.
Style de citation MLARobert ashton. The Life Plan: 700 Simple Ways to Change Your Life for the Better. Pearson education, 2007.
Attention : ces citations peuvent ne pas être correctes à 100%.