00682nam a2200169Ia 450000100060000000300050000600500170001100800410002811000740006924501030014326001030024630000190034965000410036865000310040965000400044070000320048062592BIBL20160527191644.0920513|1969||||wau|||||||||||00010|eng|d20aU.S. National Center for Educational Research and Development.2Local10aInstructional television facilitiesba planning guidecJohn P. Witherspoon and William J. Kessler.0 aWashingtonbU.S. Office of Education for sale by the Supt. of Docs., U.S. Govt. Print. Off.c1969.  av. 73 p.bill. 0aTelevision in educationzU.S.2Local 0aKessler, William J.2Local 0aSchool facilitiesxPlanning.2Local10aWitherspoon, John P.2Local