Smith, B. H. (1997). Belief and resistance. Cambridge, Massachusetts London, England.
Dyfyniad Arddull ChicagoSmith, Barbara Herrnstein. Belief and Resistance. Cambridge, Massachusetts London, England, 1997.
Dyfyniad MLASmith, Barbara Herrnstein. Belief and Resistance. Cambridge, Massachusetts London, England, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.