1
Cyhoeddwyd: c2009.
2
Cyhoeddwyd: 2001
Superior document: University of California publications in entomology 121
3
Cyhoeddwyd: 2000
Superior document: University of California publications in entomology 120
4
Cyhoeddwyd: 1991
5
Cyhoeddwyd: 1995
Superior document: University of California publications in entomology 115
6
Cyhoeddwyd: [2013]
Superior document: Title is part of eBook package: De Gruyter DGBA Medicine and Life Sciences 1990 - 1999
Links: Cael y testun llawn; Cael y testun llawn; Cover