Gelb, M. (1998). How to think like Leonardo Da Vinci: Seven steps to genius every day. Delta Trade Paperbacks.
Cita Chicago Style (17a ed.)Gelb, Michael. How to Think like Leonardo Da Vinci: Seven Steps to Genius Every Day. New York, N.Y.: Delta Trade Paperbacks, 1998.
Cita MLA (8a ed.)Gelb, Michael. How to Think like Leonardo Da Vinci: Seven Steps to Genius Every Day. Delta Trade Paperbacks, 1998.
Precaución: Estas citas no son 100% exactas.