Freeman, C. (1986). Design, innovation, and long cycles in economic development. St. Martins's Press.
Chicago-referens (17:e uppl.)Freeman, Christopher. Design, Innovation, and Long Cycles in Economic Development. New York: St. Martins's Press, 1986.
MLA-referens (9:e uppl.)Freeman, Christopher. Design, Innovation, and Long Cycles in Economic Development. St. Martins's Press, 1986.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.