1
Cyhoeddwyd: [2015]
Links: Cael y testun llawn
2
Cyhoeddwyd: [2009]
Superior document: Title is part of eBook package: De Gruyter Gorgias Press Backlist eBook-Package 2001-2013
Links: Cael y testun llawn; Cael y testun llawn; Cover
3
Cyhoeddwyd: [2010]
Superior document: Title is part of eBook package: De Gruyter Gorgias Press Backlist eBook-Package 2001-2013
Links: Cael y testun llawn; Cael y testun llawn; Cover