Schramm, W. L. (1977). Big media, little media: Tools and technologies for instruction. Sage Publications.
Lua i Stíl Chicago (17ú heag.)Schramm, Wilbur Lang. Big Media, Little Media: Tools and Technologies for Instruction. Beverly Hills: Sage Publications, 1977.
Lua MLA (9ú heag.)Schramm, Wilbur Lang. Big Media, Little Media: Tools and Technologies for Instruction. Sage Publications, 1977.
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