00313nam a2200109Ia 450000500170000008000180001710000170003524500660005226000500011830000160016858300190018420260716043621.0  a19.02.01 S574  aSigel, Efrem  aVideo discs : the technology, the applications and the future  bKnowledge Industry Pub.aWhite PlainsUSc1980  aiii, 183 p.  c10/19/05kJOYD