Matches in Library of Congress for { ?s ?p 1981-. }
- 81019839 issued "1981-".
- 81019904 issued "1981-".
- 81038330%2F%2Fr883 issued "1981-".
- 81038397 issued "1981-".
- 81050898 issued "1981-".
- 81051072%2F%2Fr92 issued "1981-".
- 81051231%2F%2Fr83 issued "1981-".
- 81051744 issued "1981-".
- 81065171%2F%2Fr83 issued "1981-".
- 81065437 issued "1981-".
- 81066428 issued "1981-".
- 81066445%2F%2Fr89 issued "1981-".
- 81066579 issued "1981-".
- 81066755%2F%2Fr85 issued "1981-".
- 81067136 issued "1981-".
- 81067269 issued "1981-".
- 81067450 issued "1981-".
- 81068100%2F%2Fr923 issued "1981-".
- 81068260 issued "1981-".
- 81068262 issued "1981-".
- 81068938%2F%2Fr88 issued "1981-".
- 81069113 issued "1981-".
- 81069234%2F%2Fr84 issued "1981-".
- 81069350%2F%2Fr84 issued "1981-".
- 81069427%2F%2Fr983 issued "1981-".
- 81069428 issued "1981-".
- 81069474%2F%2Fr94 issued "1981-".
- 81070261%2F%2Fr95 issued "1981-".
- 81080301 issued "1981-".
- 81080596 issued "1981-".
- 81080730 issued "1981-".
- 81080774 issued "1981-".
- 81081311 issued "1981-".
- 81081490 issued "1981-".
- 81082113 issued "1981-".
- 81082295 issued "1981-".
- 81082679 issued "1981-".
- 81083327%2F%2Fr922 issued "1981-".
- 81083462 issued "1981-".
- 81083776 issued "1981-".
- 81083826%2F%2Fr83 issued "1981-".
- 81083828%2F%2Fr83 issued "1981-".
- 81083831%2F%2Fr83 issued "1981-".
- 81083832 issued "1981-".
- 81083833%2F%2Fr83 issued "1981-".
- 81084122 issued "1981-".
- 81085577 issued "1981-".
- 81100253 issued "1981-".
- 81105922 issued "1981-".
- 81109438 issued "1981-".
- 81109908 issued "1981-".
- 81111074 issued "1981-".
- 81111614 issued "1981-".
- 81112025 issued "1981-".
- 81114709 issued "1981-".
- 81115702%2F%2Fr95 issued "1981-".
- 81118183 issued "1981-".
- 81118838%2F%2Fr912 issued "1981-".
- 81119339 issued "1981-".
- 81119524 issued "1981-".
- 81119618 issued "1981-".
- 81120645%2F%2Fr942 issued "1981-".
- 81121324 issued "1981-".
- 81121977 issued "1981-".
- 81122532 issued "1981-".
- 81122749 issued "1981-".
- 81123103 issued "1981-".
- 81125375%2F%2Fr94 issued "1981-".
- 81127541 issued "1981-".
- 81127607 issued "1981-".
- 81128068 issued "1981-".
- 81128746 issued "1981-".
- 81130081 issued "1981-".
- 81130185 issued "1981-".
- 81130402%2F%2Fr97 issued "1981-".
- 81130479%2F%2Fr90 issued "1981-".
- 81130726 issued "1981-".
- 81130878 issued "1981-".
- 81131392 issued "1981-".
- 81131935%2F%2Fr92 issued "1981-".
- 81131996 issued "1981-".
- 81132117%2F%2Fr89 issued "1981-".
- 81132956%2F%2Fr952 issued "1981-".
- 81133722 issued "1981-".
- 81134597 issued "1981-".
- 81134782 issued "1981-".
- 81135591 issued "1981-".
- 81135700%2F%2Fr92 issued "1981-".
- 81136210 issued "1981-".
- 81136517 issued "1981-".
- 81137887 issued "1981-".
- 81138128%2F%2Fr91 issued "1981-".
- 81138956%2F%2Fr96 issued "1981-".
- 81139501%2F%2Fr91 issued "1981-".
- 81142315 issued "1981-".
- 81142909%2F%2Fr963 issued "1981-".
- 81143197%2F%2Fr92 issued "1981-".
- 81143707 issued "1981-".
- 81144630%2F%2Fr94 issued "1981-".
- 81145954 issued "1981-".