Thomas R S. (1993). R S Thomas collected poems: 1945-1990. Orion.
Chicago Edition CitationThomas R S. R S Thomas Collected Poems: 1945-1990. London: Orion, 1993.
Cita MLAThomas R S. R S Thomas Collected Poems: 1945-1990. Orion, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.