Cita APA (7th ed.)

COPI, I. M., & GOULD, J. A. (1972). Readings on logic.-- Ed.2. The Macmillan Co.

Cita Chicago (17th ed.)

COPI, Irving M., i James A. GOULD. Readings on Logic.-- Ed.2. New York: The Macmillan Co, 1972.

Cita MLA (9th ed.)

COPI, Irving M., i James A. GOULD. Readings on Logic.-- Ed.2. The Macmillan Co, 1972.