Matches in Library of Congress for { <http://lccn.loc.gov/34020939> ?p ?o. }
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- 34020939 contributor B839422.
- 34020939 created "[c1934]".
- 34020939 date "1934".
- 34020939 date "[c1934]".
- 34020939 dateCopyrighted "[c1934]".
- 34020939 description "Issued also as thesis (Ph. D.) Johns Hopkins university.".
- 34020939 extent "58 p.".
- 34020939 isPartOf "Mental measurement monographs ... serial no. 10".
- 34020939 issued "1934".
- 34020939 issued "[c1934]".
- 34020939 language "eng".
- 34020939 publisher "Baltimore, Md., The Williams & Wilkins Co.".
- 34020939 subject "151.2 159.928".
- 34020939 subject "LB1131 .B36 1934".
- 34020939 subject "Learning, Psychology of.".
- 34020939 subject "Psychological tests.".
- 34020939 title "Time-limit vs. work-limit in learning by Evelyn W. Betts.".
- 34020939 type "text".