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.
Cytowanie według stylu Chicago (wyd. 17)John-Roger i 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.
Cytowanie według stylu MLA (wyd. 9)John-Roger i 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.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..