Plantinga, Alvin . The nature of necessity / Alvin Plantinga. - Oxford : Oxford University Press , 1974(rep.1989). - ix,255p. : figs.,tables,ill. ; 23cm . Includes bibliography and index ISBN: 0198244142 UKP 9.95 Subjects--Index Terms: PHILOSOPHY Dewey Class. No.: 113 / PLA/N