00458nam a2200145Ia 450000100070000000500170000700700100002400800410003424500430007526000540011830000380017250000820021053800080029254600120030032756020160619015347.0v        140804                f          v eng  00aPrinciples of indexinghvideorecording  aCapitol Heights, MDbNational AudioVisual Center,  a1 VHS ( min.)bsd., col.c1/2 in.  aLa biblioteca posee un original en VHS, se reprodujo en DVD para uso interno.  aVHS  aEnglish