Παραπομπή APA

Polcyn, K. A. (1973). An educator's guide to communication satellite technology. Washington, D.C: Information Center on Instructional Technology.

Παραπομπή Chicago Style

Polcyn, Kenneth A. An Educator's Guide to Communication Satellite Technology. Washington, D.C: Information Center on Instructional Technology, 1973.

Παραπομπή MLA

Polcyn, Kenneth A. An Educator's Guide to Communication Satellite Technology. Washington, D.C: Information Center on Instructional Technology, 1973.

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