1
Cyhoeddwyd: [1987]
Links: Cael y testun llawn; Cael y testun llawn; Cover
2
Cyhoeddwyd: [2022]
Superior document: Title is part of eBook package: De Gruyter DGBA Philosophy 1990 - 1999
Links: Cael y testun llawn; Cael y testun llawn; Cover