Citace podle APA

Gelb, M. J. (2004). How to think like Leonardo da Vinci: Seven steps to genius every day. Delta trade.

Styl Chicago

Gelb, Michael J. How to Think like Leonardo Da Vinci: Seven Steps to Genius Every Day. New York: Delta trade, 2004.

Citace podle MLA

Gelb, Michael J. How to Think like Leonardo Da Vinci: Seven Steps to Genius Every Day. Delta trade, 2004.

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