Matches in Library of Congress for { ?s ?p 1981-. }
- 82134067 issued "1981-".
- 82134402 issued "1981-".
- 82134741 issued "1981-".
- 82134842 issued "1981-".
- 82134927 issued "1981-".
- 82135206 issued "1981-".
- 82135516%2F%2Fr942 issued "1981-".
- 82135553%2F%2Fr832 issued "1981-".
- 82135809 issued "1981-".
- 82135821 issued "1981-".
- 82136192 issued "1981-".
- 82136865 issued "1981-".
- 82137771 issued "1981-".
- 82137904 issued "1981-".
- 82138499 issued "1981-".
- 82138506 issued "1981-".
- 82139147 issued "1981-".
- 82139274 issued "1981-".
- 82139331%2F%2Fr94 issued "1981-".
- 82139388 issued "1981-".
- 82139498%2F%2Fr943 issued "1981-".
- 82139578%2F%2Fr95 issued "1981-".
- 82139620%2F%2Fr91 issued "1981-".
- 82139828 issued "1981-".
- 82140352 issued "1981-".
- 82141196 issued "1981-".
- 82141462%2F%2Fr98 issued "1981-".
- 82141532 issued "1981-".
- 82141671 issued "1981-".
- 82142026%2F%2Fr94 issued "1981-".
- 82142169 issued "1981-".
- 82142605 issued "1981-".
- 82142679%2F%2Fr83 issued "1981-".
- 82143055%2F%2Fr963 issued "1981-".
- 82143317 issued "1981-".
- 82143639 issued "1981-".
- 82143743 issued "1981-".
- 82143893 issued "1981-".
- 82143898 issued "1981-".
- 82143944 issued "1981-".
- 82144311 issued "1981-".
- 82144317 issued "1981-".
- 82144639%2F%2Fr93 issued "1981-".
- 82144807 issued "1981-".
- 82144836%2F%2Fr84 issued "1981-".
- 82145346 issued "1981-".
- 82145620 issued "1981-".
- 82145729 issued "1981-".
- 82145857%2F%2Fr944 issued "1981-".
- 82146357 issued "1981-".
- 82146869 issued "1981-".
- 82147254 issued "1981-".
- 82147546 issued "1981-".
- 82147743 issued "1981-".
- 82147906 issued "1981-".
- 82148001 issued "1981-".
- 82148226 issued "1981-".
- 82148462 issued "1981-".
- 82148467 issued "1981-".
- 82148575 issued "1981-".
- 82148884 issued "1981-".
- 82149075 issued "1981-".
- 82149108 issued "1981-".
- 82149292 issued "1981-".
- 82149435 issued "1981-".
- 82149934 issued "1981-".
- 82150026 issued "1981-".
- 82150124%2F%2Fr92 issued "1981-".
- 82150132 issued "1981-".
- 82150526 issued "1981-".
- 82150574 issued "1981-".
- 82150576%2F%2Fr91 issued "1981-".
- 82150857 issued "1981-".
- 82151149 issued "1981-".
- 82151523 issued "1981-".
- 82151795 issued "1981-".
- 82152098 issued "1981-".
- 82152276 issued "1981-".
- 82152303 issued "1981-".
- 82152705 issued "1981-".
- 82152936 issued "1981-".
- 82153672 issued "1981-".
- 82153823%2F%2Fr993 issued "1981-".
- 82154788 issued "1981-".
- 82154932%2F%2Fr91 issued "1981-".
- 82155120 issued "1981-".
- 82155151%2F%2Fr932 issued "1981-".
- 82155320 issued "1981-".
- 82155402%2F%2Fr952 issued "1981-".
- 82155443 issued "1981-".
- 82155998 issued "1981-".
- 82156262 issued "1981-".
- 82156360 issued "1981-".
- 82156450 issued "1981-".
- 82157154 issued "1981-".
- 82157893%2F%2Fr91 issued "1981-".
- 82158602%2F%2Fr91 issued "1981-".
- 82158811 issued "1981-".
- 82158974 issued "1981-".
- 82159566 issued "1981-".