Nolt, J. E., & Rohatyn, D. A. (1988). Schaum's outline of theory and problems of LOGIC / 2nd ed. McGraw-Hill Book Co..
Dyfyniad Arddull ChicagoNolt, John Eric, and Dennis A. Rohatyn. Schaum's Outline of Theory and Problems of LOGIC / 2nd Ed. New York: McGraw-Hill Book Co., 1988.
Dyfyniad MLANolt, John Eric, and Dennis A. Rohatyn. Schaum's Outline of Theory and Problems of LOGIC / 2nd Ed. McGraw-Hill Book Co., 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.