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- 68060250 contributor B1869644.
- 68060250 contributor B1869645.
- 68060250 contributor B1869646.
- 68060250 created "1964.".
- 68060250 date "1964".
- 68060250 date "1964.".
- 68060250 dateCopyrighted "1964.".
- 68060250 extent "iii, 27, [18] l.".
- 68060250 issued "1964".
- 68060250 issued "1964.".
- 68060250 language "eng".
- 68060250 publisher "Washington, Bureau of Educational Research and Development, U.S. Office of Education,".
- 68060250 subject "LB1028.5 .C4".
- 68060250 subject "Programmed instruction.".
- 68060250 subject "Teaching machines.".
- 68060250 title "Programed instruction and teaching machines: a national-demonstration exhibit. Prepared by A. Harvey Block.".
- 68060250 type "text".