Footner, H. The viper. Published for the Crime Club by Collins.
Dyfyniad Arddull ChicagoFootner, Hulbert. The Viper. London: Published for the Crime Club by Collins.
Dyfyniad MLAFootner, Hulbert. The Viper. Published for the Crime Club by Collins.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.