Ryan, C. (1966). The last battle. Popular Library.
Cita Chicago Style (17a ed.)Ryan, Cornelius. The Last Battle. New York, Estados Unidos: Popular Library, 1966.
Cita MLA (9a ed.)Ryan, Cornelius. The Last Battle. Popular Library, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.