Cita APA (7th ed.)

Lewis, E., & Lewis, P. (1937). The land of Wales. Batsford.

Cita Chicago (17th ed.)

Lewis, Eiluned, i Peter Lewis. The Land of Wales. Lond.: Batsford, 1937.

Cita MLA (8th ed.)

Lewis, Eiluned, i Peter Lewis. The Land of Wales. Batsford, 1937.