Dunlap, O. E. (1962). Communications in space: From Marconi to man on the moon. New York: Harper & Row.
Dyfyniad Arddull ChicagoDunlap, Orrin Elmer. Communications in Space: From Marconi to Man On the Moon. New York: Harper & Row, 1962.
Dyfyniad MLADunlap, Orrin Elmer. Communications in Space: From Marconi to Man On the Moon. New York: Harper & Row, 1962.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.