Cita APA (7a ed.)

Smith, H. B. (1922). Foundations of formal logic. Press of the University of Pennsylvania.

Cita Chicago Style (17a ed.)

Smith, Henry Bradford. Foundations of Formal Logic. Philadelphia: Press of the University of Pennsylvania, 1922.

Cita MLA (9a ed.)

Smith, Henry Bradford. Foundations of Formal Logic. Press of the University of Pennsylvania, 1922.

Precaución: Estas citas no son 100% exactas.