1
Cyhoeddwyd: [2020]
Superior document: Title is part of eBook package: De Gruyter Amsterdam University Press Complete eBook-Package 2020
2
Cyhoeddwyd: [2013]
Superior document: Title is part of eBook package: De Gruyter HUP e-dition: Complete eBook Package
3
Cyhoeddwyd: 2019.
Superior document: Service Systems and Innovations in Business and Society Collection
4
5
Cyhoeddwyd: c2002.
6
7
Cyhoeddwyd: [2011]
Superior document: Title is part of eBook package: De Gruyter Berghahn Books Complete eBook-Package 2000-2013
Links: Cael y testun llawn; Cael y testun llawn; Cover
8
Cyhoeddwyd: [2019]
Superior document: Title is part of eBook package: De Gruyter DG Ebook Package English 2020
Links: Cael y testun llawn; Cael y testun llawn; Cover
9
Cyhoeddwyd: [2017]
Superior document: Title is part of eBook package: De Gruyter New York University Press Complete eBook-Package 2017
Links: Cael y testun llawn; Cael y testun llawn; Cover