Jeffrey, R. (1989). Formal logic: Its scope and limits (2nd ed.). McGraw-Hill.
Citación estilo ChicagoJeffrey, Richard. Formal Logic: Its Scope and Limits. 2nd ed. New York: McGraw-Hill, 1989.
Cita MLAJeffrey, Richard. Formal Logic: Its Scope and Limits. 2nd ed. McGraw-Hill, 1989.
Warning: These citations may not always be 100% accurate.