Hawkins, D. R., & Jeffrey, S. (2011). Along the path to enlightenment: 365 daily reflections from David R. Hawkins, M.D., PH.D. Hay House.
Chicago-viite (17. p.)Hawkins, David R., ja Scott Jeffrey. Along the Path to Enlightenment: 365 Daily Reflections from David R. Hawkins, M.D., PH.D. Carlsbad, Calif.: Hay House, 2011.
MLA-viite (9. p.)Hawkins, David R., ja Scott Jeffrey. Along the Path to Enlightenment: 365 Daily Reflections from David R. Hawkins, M.D., PH.D. Hay House, 2011.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.