Hubbard L.Ron. (2007). The way to happiness; Acommon ; Guide to better living. New ERa.
Cita Chicago (17th ed.)Hubbard L.Ron. The Way to Happiness; Acommon ; Guide to Better Living. [s.l]: New ERa, 2007.
Cita MLA (9th ed.)Hubbard L.Ron. The Way to Happiness; Acommon ; Guide to Better Living. New ERa, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.