Williams, G. (1978). An introduction to Welsh literature. University of Wales Press on behalf of the Welsh Arts Council.
Chicago-referens (17:e uppl.)Williams, Gwyn. An Introduction to Welsh Literature. [Cardiff]: University of Wales Press on behalf of the Welsh Arts Council, 1978.
MLA-referens (9:e uppl.)Williams, Gwyn. An Introduction to Welsh Literature. University of Wales Press on behalf of the Welsh Arts Council, 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.