1. Review of Skinner's Verbal behavior;Chomsky;Language,1959
2. The structure of a semantic theory;Katz;Language,1963
3. Hilgard and Marquis' Conditioning and learning;Kimble,1961
4. Studies of the conditioning of verbal behavior;Krasner;Psychol. Bull.,1958
5. Learning theory and the symbolic processes;Mowrer,1960