Schwartz, D. J. (1997). The magic of thinking big (1st Fireside ed.). Pocket books.
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Chicago-čujuhus (17. p.)
Schwartz, David Joseph. The Magic of Thinking Big. 1st Fireside ed. London: Pocket books, 1997.
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MLA-čujuhus (9. p.)
Schwartz, David Joseph. The Magic of Thinking Big. 1st Fireside ed. Pocket books, 1997.
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