Beth sy'n gwneud dydd a nos /
Branley, Franklyn Mansfield,1915-2002.
Dorros, Arthur.
Jones, Berwyn Prys.
Penryn : Ivan Corbett,
1990.
Arg Saesneg blaenorol = Previous English ed: Harper & Row, 1986
Addasiad Cymraeg gan Berwyn Prys Jones = Welsh adaptation by Berwyn Prys Jones
Earth