JEFFREY, R. C. (1967). Formal logic: Its scope and limits. McGraw-Hill.
Citación estilo ChicagoJEFFREY, Richard C. Formal Logic: Its Scope and Limits. New York: McGraw-Hill, 1967.
Cita MLAJEFFREY, Richard C. Formal Logic: Its Scope and Limits. McGraw-Hill, 1967.
Warning: These citations may not always be 100% accurate.