Directives and norms
Ross, A. L. F.
Directives and norms by A L F Ross - London Routledge & Kegan Paul 1968 - ix,188p. ; 22cm. - International library of philosophy and scientific method .
Ethics
170 / ROS
Directives and norms by A L F Ross - London Routledge & Kegan Paul 1968 - ix,188p. ; 22cm. - International library of philosophy and scientific method .
Ethics
170 / ROS