APA aipamena

David Joseph Schwartz. (2006). The magic of thinking big. Pocket.

Chicago Style aipamena

David Joseph Schwartz. The Magic of Thinking Big. London: Pocket, 2006.

MLA aipamena

David Joseph Schwartz. The Magic of Thinking Big. Pocket, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.