Brunner, J. (1971). Double, double: Science fiction. Sidgwick and Jackson.
Dyfyniad Arddull ChicagoBrunner, John. Double, Double: Science Fiction. London: Sidgwick and Jackson, 1971.
Dyfyniad MLABrunner, John. Double, Double: Science Fiction. Sidgwick and Jackson, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.