1
Cyhoeddwyd: [1998]
Superior document: Title is part of eBook package: De Gruyter Columbia University Press eBook-Package Archive 1898-1999
2
Cyhoeddwyd: [2012]
Superior document: Title is part of eBook package: De Gruyter Rutgers University Press Backlist eBook-Package 2000-2013
Links: Cael y testun llawn; Cael y testun llawn; Cover
3
Cyhoeddwyd: [2019]
Superior document: Title is part of eBook package: De Gruyter Princeton University Press Complete eBook-Package 2016
Links: Cael y testun llawn; Cael y testun llawn; Cover