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- 70636470%2F%2Fr89 contributor B2006616.
- 70636470%2F%2Fr89 contributor B2006617.
- 70636470%2F%2Fr89 contributor B2006618.
- 70636470%2F%2Fr89 created "1971.".
- 70636470%2F%2Fr89 date "1971".
- 70636470%2F%2Fr89 date "1971.".
- 70636470%2F%2Fr89 dateCopyrighted "1971.".
- 70636470%2F%2Fr89 extent "9, [38] l.".
- 70636470%2F%2Fr89 isPartOf "CSE report ; no. 68".
- 70636470%2F%2Fr89 issued "1971".
- 70636470%2F%2Fr89 issued "1971.".
- 70636470%2F%2Fr89 language "eng".
- 70636470%2F%2Fr89 publisher "[Philadelphia] Research for Better Schools,".
- 70636470%2F%2Fr89 subject "370/.8 s 371.39/445".
- 70636470%2F%2Fr89 subject "LB1131 .C2553 no. 68 LB1028.5".
- 70636470%2F%2Fr89 subject "Teaching machines.".
- 70636470%2F%2Fr89 title "A critical survey of auto-feedback devices in education, by Joyce DeMuth and Ralph Hoepfner.".
- 70636470%2F%2Fr89 type "text".