By Voss Stephen   Sayward Charles   in Australasian Journal of Philosophy

ISSN:0004-8402|54|1|14-23

Routledge Ltd‎(1976)‎

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By Hugly Philip   Sayward Charles   in Poznan Studies in the Philosophy of the Sciences and the Humanities

ISSN:0303-8157|90|1|369-386

Rodopi‎(2006)‎

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