00763nam a2200241Ia 4500001000700000003000500007005001700012008004100029010001500070015001600085050002300101082001400124100002500138245006600163260003500229300003400264490002300298490003300321504005100354650003900405650003400444650004300478175647BIBL20160527185238.0750813s1975    enkae    b    00110 eng    a 75321660   aGB 75-049240 aLB1043b.H333 1975  a371.3/07810aHanson, John.2Local14aThe use of resourcescJohn Hanson ; foreword by James Porter.0 aLondonbAllen and Unwinc1975.  a3-108 p.bill., plansc23 cm.0 aTeaching today ; 30 aUnwin education books2Local  aIncludes bibliographical references and index. 0aTeachingxAids and devices.2Local 0aAudiovisual education.2Local 0aInstructional materials centers2Local