An educator's guide to communication satellite technology

Sonraí bibleagrafaíochta
Príomhchruthaitheoir:	Polcyn, Kenneth A.
Formáid:	LEABHAR
Teanga:	English
Foilsithe / Cruthaithe:	Washington Information Center on Instructional Technology 1973.
Ábhair:	Television in education. Artificial satellites in telecommunications.