Keal, P. (1983). Unspoken rules and superpower dominance. St. Martin's.
Citación estilo ChicagoKeal, Paul. Unspoken Rules and Superpower Dominance. New York: St. Martin's, 1983.
Cita MLAKeal, Paul. Unspoken Rules and Superpower Dominance. St. Martin's, 1983.
Warning: These citations may not always be 100% accurate.