Telecommunications costs

von Dittberner, Donald L.
Veröffentlicht in Conference on Interlibrary Communications and Information Networks (1970 : Warrenton, Va.) Proceedings of the Conference on Interlibrary Communications and Information Networks, sponsored by the American Library Association and the U. S. Office of Education, Bureau of Libraries and Educational Technology held at Airlie House, Warrenton, Virginia Sept. 28, 1970 - Oct. 2, 1970 (1971)