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2.
Collins, Randall. 1998. The sociology of philosophies: A global theory of intellectual change. Cambridge, MA: Harvard University Press.
3.
Jarvie, I. C.1975. Cultural relativism again. Philosophy of the Social Sciences, 5:343-353.
4.
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5.
(Arevised version is in K. R. Popper, In search of a better world, London: Routledge, 1992, chap. 5.)