APA (7th ed.) Citation

Lewis, A. A. (1980). On the formal character of plausible reasoning. [Rand].

Chicago Style (17th ed.) Citation

Lewis, Alain A. On the Formal Character of Plausible Reasoning. [Santa Monica, Calif.]: [Rand], 1980.

MLA (9th ed.) Citation

Lewis, Alain A. On the Formal Character of Plausible Reasoning. [Rand], 1980.