Feasibility and planning of instructional satellite systems : background paper.
1981
Полное описание
Условное обозначениеA/CONF.101/BP/6
ЗаглавиеFeasibility and planning of instructional satellite systems : background paper.
АвторыUN. Secretariat
ДатаNew York : UN, 13 Feb. 1981.
Описание
[77] p., including annex : tables.