APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.