Campbell, J. (1982). Timex personal computer made simple: A guide to the timex/ sinclair 1000. New American Library.
Dyfyniad Arddull ChicagoCampbell, Joe. Timex Personal Computer Made Simple: A Guide to the Timex/ Sinclair 1000. New York: New American Library, 1982.
Dyfyniad MLACampbell, Joe. Timex Personal Computer Made Simple: A Guide to the Timex/ Sinclair 1000. New American Library, 1982.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.