Quine, W. v. O. (1981). Theories and things. Cambridge: Harvard University Press. Belknap Press.
Παραπομπή Chicago StyleQuine, Willard van Orman. Theories and Things. Cambridge: Harvard University Press. Belknap Press, 1981.
Παραπομπή MLAQuine, Willard van Orman. Theories and Things. Cambridge: Harvard University Press. Belknap Press, 1981.
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