Matches in Library of Congress for { ?s ?p Astronomical observatories.. }
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- 02022655 subject "Astronomical observatories.".
- 04015392 subject "Astronomical observatories.".
- 05037109 subject "Astronomical observatories.".
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- 2005565283 subject "Astronomical observatories.".
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- 2009379277 subject "Astronomical observatories.".
- 24025506 subject "Astronomical observatories.".
- 24030574 subject "Astronomical observatories.".
- 24031278 subject "Astronomical observatories.".
- 37039357 subject "Astronomical observatories.".
- 43001097%2F%2Fr912 subject "Astronomical observatories.".
- 59019130 subject "Astronomical observatories.".
- 60014356 subject "Astronomical observatories.".
- 60033082 subject "Astronomical observatories.".
- 62009351 subject "Astronomical observatories.".
- 63061441 subject "Astronomical observatories.".
- 66097611 subject "Astronomical observatories.".
- 67008661 subject "Astronomical observatories.".
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- 73174762 subject "Astronomical observatories.".
- 73565933 subject "Astronomical observatories.".
- 73905560%2FSA%2Fr98 subject "Astronomical observatories.".
- 74156822%2F%2Fr91 subject "Astronomical observatories.".
- 75509022 subject "Astronomical observatories.".
- 75540049 subject "Astronomical observatories.".
- 79102417 subject "Astronomical observatories.".
- 81070024%2F%2Fr92 subject "Astronomical observatories.".
- 81452301%2F%2Fr85 subject "Astronomical observatories.".
- 86051415%2F%2Fr91 subject "Astronomical observatories.".
- 92247791 subject "Astronomical observatories.".
- 99135493 subject "Astronomical observatories.".