Ries, E. (2011). The Lean Startup. Portfolio Penguin.
Cita Chicago Style (17a ed.)Ries, Eric. The Lean Startup. Portfolio Penguin, 2011.
Cita MLA (9a ed.)Ries, Eric. The Lean Startup. Portfolio Penguin, 2011.
Precaución: Estas citas no son 100% exactas.