Matches in Library of Congress for { ?s ?p Frequency spectra.. }
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- 00044508 subject "Frequency spectra.".
- 00326282 subject "Frequency spectra.".
- 2001025371 subject "Frequency spectra.".
- 2002073356 subject "Frequency spectra.".
- 2003060252 subject "Frequency spectra.".
- 2006015556 subject "Frequency spectra.".
- 2007488353 subject "Frequency spectra.".
- 2010408436 subject "Frequency spectra.".
- 2011479474 subject "Frequency spectra.".
- 82236473 subject "Frequency spectra.".
- 94039843%2F%2Fr95 subject "Frequency spectra.".
- 96013535 subject "Frequency spectra.".
- 97043191 subject "Frequency spectra.".
- 98022862 subject "Frequency spectra.".
- 98038814 subject "Frequency spectra.".
- 98041653 subject "Frequency spectra.".