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.
Чикаго стиль цитування (17-те видання)John-Roger та 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.
Стиль цитування MLA (9-ме видання)John-Roger та 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.
Попередження: стилі цитування не завжди правильні на всі 100%.