Cita APA

Jeffrey, R. C. (1967). Formal logic: Its scope and limits. McGraw-Hill.

Chicago Edition Citation

Jeffrey, Richard C. Formal Logic: Its Scope and Limits. New York: McGraw-Hill, 1967.

Cita MLA

Jeffrey, Richard C. Formal Logic: Its Scope and Limits. McGraw-Hill, 1967.

Atenció: Aquestes cites poden no estar 100% correctes.