APA Citation

Leonhardt, D. 9 habits of happiness: Develop your own personel plan for happiness using this step-by-step guide. Kuala Lumpur : YLP Publication, c 2012.

Chicago Style Citation

Leonhardt, David. 9 Habits of Happiness: Develop Your Own Personel Plan for Happiness Using This Step-by-step Guide. Kuala Lumpur : YLP Publication, c 2012.

MLA Citation

Leonhardt, David. 9 Habits of Happiness: Develop Your Own Personel Plan for Happiness Using This Step-by-step Guide. Kuala Lumpur : YLP Publication, c 2012.

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