Tukey, D.D. (1986). A philosophical and empirical analysis of subjects' modes of enquiry in Wason's 2-4--6 task. Quarterly Journal of Experimental Psychology, 38, 5-33.
2.
Wason, P.C. (1960). On the failure to eliminate hypotheses in a conceptual task. Quarterly Journal of Experimental Psychology, 12, 129-140.
3.
Wason, P.C. (1966). Reasoning. In B.M. Foss (Ed.), New horizons in psychology (pp. 135-151). Harmondsworth: Penguin.
4.
Wason, P.C. (2001). Creativity in research. In G.C. Bunn, A.D. Lovie, & G.D. Richards (Eds), Psychology in Britain (pp. 433-444). Leicester: BPS Books.
5.
Wetherick, N.E. (1962). Eliminative and enumerative behaviour in a conceptual task. Quarterly Journal of Experimental Psychology, 14, 246-249.
6.
Wetherick, N.E. (1970). On the representativeness of some experiments in cognition. Bulletin of the British Psychological Society, 22, 213-214.
7.
Wetherick, N.E. (1971). `Representativeness' in a reasoning problem: A reply to Shapiro. Bulletin of the British Psychological Society, 24, 213-214.
8.
Wetherick, N.E. (1995). Reasoning and rationality: A critique of some experimental paradigms. Theory & Psychology, 5, 429-448.
