Standley, G. B. (1971). New methods in symbolic logic. Houghton Mifflin.
Cita Chicago (17th ed.)Standley, Gerald B. New Methods in Symbolic Logic. Boston: Houghton Mifflin, 1971.
Cita MLA (9th ed.)Standley, Gerald B. New Methods in Symbolic Logic. Houghton Mifflin, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.