Ley, W. (1968). Rockets, Missiles, and Men in Space. New York: The New American Library.
Stile di citazione ChicagoLey, Willy. Rockets, Missiles, and Men in Space. New York: The New American Library, 1968.
Citazione MLALey, Willy. Rockets, Missiles, and Men in Space. New York: The New American Library, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.