Instructional technology its nature and use /

Eitemau Tebyg

• Instructional technology its nature and use /
  gan: Wittich, Walter A.
  Cyhoeddwyd: (1973)
• Instructional technology : its nature and use
  gan: Schuller, C F
  Cyhoeddwyd: (1979)
• Audio Visual Materials Their Nature and Use
  gan: Walter Arno Wittich
  Cyhoeddwyd: (1968)
• Audio-Visual Materials Their Nature and Use
  gan: Wittich,Walter Arno and Schuller,Charles Francis
  Cyhoeddwyd: (1957)
• Instructional technology /
  gan: Srinivasan, T M
  Cyhoeddwyd: (2005)