Layman, C. S. (2001). The power of logic (2nd ed.). Mountain View, Calif.: Mayfield Pub..
Dyfyniad Arddull ChicagoLayman, Charles S. The Power of Logic. 2nd ed. Mountain View, Calif.: Mayfield Pub., 2001.
Dyfyniad MLALayman, Charles S. The Power of Logic. 2nd ed. Mountain View, Calif.: Mayfield Pub., 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.