Cita APA (7th ed.)

Sky, T. (2011). The National Road and the difficult path to sustainable national investment. University of Delaware Press.

Cita Chicago (17th ed.)

Sky, Theodore. The National Road and the Difficult Path to Sustainable National Investment. Newark: University of Delaware Press, 2011.

Cita MLA (9th ed.)

Sky, Theodore. The National Road and the Difficult Path to Sustainable National Investment. University of Delaware Press, 2011.