Παραπομπή APA

L.Ron Hubbard. (2007). The way to Happiness: A common sense guide to better living. New Era Publications.

Παραπομπή Chicago Style

L.Ron Hubbard. The Way to Happiness: A Common Sense Guide to Better Living. Denmark: New Era Publications, 2007.

Παραπομπή MLA

L.Ron Hubbard. The Way to Happiness: A Common Sense Guide to Better Living. New Era Publications, 2007.