Matches in Library of Congress for { <http://lccn.loc.gov/61007683> ?p ?o. }
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- 61007683 contributor B1476709.
- 61007683 created "[1961]".
- 61007683 date "1961".
- 61007683 date "[1961]".
- 61007683 dateCopyrighted "[1961]".
- 61007683 extent "48 p.".
- 61007683 isPartOf "The What is it series".
- 61007683 issued "1961".
- 61007683 issued "[1961]".
- 61007683 language "eng".
- 61007683 publisher "Chicago, Benefic Press".
- 61007683 subject "372.412".
- 61007683 subject "PE1127.S3 D277".
- 61007683 subject "Readers Science.".
- 61007683 title "What is a simple machine. Pictures: Robert W. Friedl.".
- 61007683 type "text".