APA Citation

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

Chicago Style Citation

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

MLA Citation

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

Warning: These citations may not always be 100% accurate.