Billington, D. P. (1966). The innovators: The engineering pioneers who made America modern. New York: Wiley.
Stile di citazione ChicagoBillington, David P. The Innovators: The Engineering Pioneers Who Made America Modern. New York: Wiley, 1966.
Citazione MLABillington, David P. The Innovators: The Engineering Pioneers Who Made America Modern. New York: Wiley, 1966.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.