Cofnodi Dyfyniadau

Dyfyniad APA
Schwartz, D. J. (1997). The magic of thinking big (1st Fireside ed.). Pocket books.
Dyfyniad Arddull Chicago
Schwartz, David Joseph. The Magic of Thinking Big. 1st Fireside ed. London: Pocket books, 1997.
Dyfyniad MLA
Schwartz, David Joseph. The Magic of Thinking Big. 1st Fireside ed. Pocket books, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.