1
Cyhoeddwyd: c2005.
Superior document: Ohio University Press series in ecology and history
Links: Cael y testun llawn
2
Cyhoeddwyd: [2004]
Links: Cael y testun llawn; Cael y testun llawn; Cover
3
Cyhoeddwyd: [2010]
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
4
Cyhoeddwyd: [2011]
Superior document: Title is part of eBook package: De Gruyter DGBA History 2000 - 2014
Links: Cael y testun llawn; Cael y testun llawn; Cover
5
Cyhoeddwyd: [2014]
Superior document: Title is part of eBook package: De Gruyter DGBA History 2000 - 2014
Links: Cael y testun llawn; Cael y testun llawn; Cover