1
Cyhoeddwyd: [2016]
Superior document: Title is part of eBook package: De Gruyter DG Plus DeG Package 2016 Part 1
Links: Cael y testun llawn; Cael y testun llawn; Cover
2
Cyhoeddwyd: [2022]
Superior document: Title is part of eBook package: De Gruyter DG Plus DeG Package 2023 Part 1
Links: Cael y testun llawn; Cael y testun llawn; Cover
3
Cyhoeddwyd: [2013]
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