John-Roger & McWilliams, P. (1991). You can't afford the luxury of a negative thought: Book for people with any life-threatening illness including life. Ms. Rowan.
Chicago-Zitierstil (17. Ausg.)John-Roger und Peter McWilliams. You Can't Afford the Luxury of a Negative Thought: Book for People with Any Life-threatening Illness Including Life. Los Angeles: Ms. Rowan, 1991.
MLA-Zitierstil (9. Ausg.)John-Roger und Peter McWilliams. You Can't Afford the Luxury of a Negative Thought: Book for People with Any Life-threatening Illness Including Life. Ms. Rowan, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.