Basil Davies

title	ISBN-13 (ISBN-10)	year of publica- tion	other author(s)
Spoken Welsh Vol. 1	978-1-57970-330-1 (1-57970-330-5)	1980	Cennard Davies
Spoken Welsh Volume 2	978-1-57970-331-8 (1-57970-331-3)	1980	"