Cita APA (7th ed.)

Sinclair, W. A. (1954). Traditional formal logic: A short account for students (5th ed.). Methuen.

Cita Chicago (17th ed.)

Sinclair, William Angus. Traditional Formal Logic: A Short Account for Students. 5th ed. London: Methuen, 1954.

Cita MLA (9th ed.)

Sinclair, William Angus. Traditional Formal Logic: A Short Account for Students. 5th ed. Methuen, 1954.