Speck, J. (2013). Walkable city: How downtown can save America, one step at a time (First paperback edition.). North Point Press, a division of Farrar, Straus and Giroux.
Cita Chicago (17th ed.)Speck, Jeff. Walkable City: How Downtown Can Save America, One Step at a Time. First paperback edition. New York: North Point Press, a division of Farrar, Straus and Giroux, 2013.
Cita MLA (8th ed.)Speck, Jeff. Walkable City: How Downtown Can Save America, One Step at a Time. First paperback edition. North Point Press, a division of Farrar, Straus and Giroux, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.