Cita APA (7th ed.)

Beardsley, M. C. (1950). Practical logic. Prentice-Hall.

Cita Chicago (17th ed.)

Beardsley, Monroe C. Practical Logic. Englewood Cliffs, N. J: Prentice-Hall, 1950.

Cita MLA (9th ed.)

Beardsley, Monroe C. Practical Logic. Prentice-Hall, 1950.