Matches in Library of Congress for { ?s ?p Cosmic ray variations.. }
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- 63050541 subject "Cosmic ray variations.".
- 74358009 subject "Cosmic ray variations.".
- 76166306 subject "Cosmic ray variations.".
- 78314900 subject "Cosmic ray variations.".
- 82156494 subject "Cosmic ray variations.".
- 82462604 subject "Cosmic ray variations.".
- 82465877 subject "Cosmic ray variations.".
- 87137888 subject "Cosmic ray variations.".
- 91207578 subject "Cosmic ray variations.".
- 93026144 subject "Cosmic ray variations.".