Ingle, H. T. (1974). Communication media and technology: A look at their role in no-formal education programs. Information Center on Instructional Technology, Academy for Educational Development.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIngle, Henry T. Communication Media and Technology: A Look at Their Role in No-formal Education Programs. Washington, D.C: Information Center on Instructional Technology, Academy for Educational Development, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIngle, Henry T. Communication Media and Technology: A Look at Their Role in No-formal Education Programs. Information Center on Instructional Technology, Academy for Educational Development, 1974.
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