APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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