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- 38017605 contributor B922769.
- 38017605 created "1937.".
- 38017605 date "1937".
- 38017605 date "1937.".
- 38017605 dateCopyrighted "1937.".
- 38017605 description "Bibliography: p. 81-83.".
- 38017605 description "Thesis (Ph. D.)--Columbia university, 1937.".
- 38017605 extent "84 p.".
- 38017605 issued "1937".
- 38017605 issued "1937.".
- 38017605 language "eng".
- 38017605 publisher "New York,".
- 38017605 subject "Attention.".
- 38017605 subject "BF481 .B3 1937".
- 38017605 subject "Mental fatigue.".
- 38017605 subject "Psychophysiology.".
- 38017605 title "Boredom and other factors in the physiology of mental effort: an exploratory study, by Joseph E. Barmack ...".
- 38017605 type "text".