Lawry, J. (2006). Modelling and reasoning with vague concepts. Springer.
Dyfyniad Arddull ChicagoLawry, Jonathan. Modelling and Reasoning with Vague Concepts. Boston, MA: Springer, 2006.
Dyfyniad MLALawry, Jonathan. Modelling and Reasoning with Vague Concepts. Springer, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.