Matches in Library of Congress for { ?s ?p 1981. }
- 80012035 date "1981".
- 80012056 date "1981".
- 80012062 date "1981".
- 80012063 date "1981".
- 80012067 date "1981".
- 80012068 date "1981".
- 80012072 date "1981".
- 80012078 date "1981".
- 80012082 date "1981".
- 80012093 date "1981".
- 80012111 date "1981".
- 80012114 date "1981".
- 80012123 date "1981".
- 80012135 date "1981".
- 80012146 date "1981".
- 80012170%2F%2Fr88 date "1981".
- 80012188 date "1981".
- 80012192%2F%2Fr87 date "1981".
- 80012196 date "1981".
- 80012231%2F%2Fr964 date "1981".
- 80012237 date "1981".
- 80012265 date "1981".
- 80012271 date "1981".
- 80012276 date "1981".
- 80012284 date "1981".
- 80012290 date "1981".
- 80012298 date "1981".
- 80012303%2F%2Fr923 date "1981".
- 80012316%2F%2Fr87 date "1981".
- 80012332 date "1981".
- 80012335 date "1981".
- 80012336%2F%2Fr85 date "1981".
- 80012338 date "1981".
- 80012341%2F%2Fr93 date "1981".
- 80012342 date "1981".
- 80012358 date "1981".
- 80012359 date "1981".
- 80012401 date "1981".
- 80012406 date "1981".
- 80012411 date "1981".
- 80012424%2F%2Fr97 date "1981".
- 80012428 date "1981".
- 80012432 date "1981".
- 80012435 date "1981".
- 80012439 date "1981".
- 80012447 date "1981".
- 80012457%2F%2Fr91 date "1981".
- 80012462 date "1981".
- 80012473%2F%2Fr842 date "1981".
- 80012476%2F%2Fr84 date "1981".
- 80012478 date "1981".
- 80012485 date "1981".
- 80012498 date "1981".
- 80012502 date "1981".
- 80012512 date "1981".
- 80012514 date "1981".
- 80012517 date "1981".
- 80012526 date "1981".
- 80012531%2F%2Fr892 date "1981".
- 80012548 date "1981".
- 80012552%2F%2Fr97 date "1981".
- 80012553%2F%2Fr94 date "1981".
- 80012559 date "1981".
- 80012560 date "1981".
- 80012562%2F%2Fr902 date "1981".
- 80012566%2F%2Fr89 date "1981".
- 80012573 date "1981".
- 80012577 date "1981".
- 80012581 date "1981".
- 80012607 date "1981".
- 80012612 date "1981".
- 80012614 date "1981".
- 80012622 date "1981".
- 80012642 date "1981".
- 80012647%2F%2Fr85 date "1981".
- 80012672 date "1981".
- 80012676 date "1981".
- 80012678%2F%2Fr852 date "1981".
- 80012703%2F%2Fr972 date "1981".
- 80012720%2F%2Fr85 date "1981".
- 80012725%2F%2Fr90 date "1981".
- 80012734 date "1981".
- 80012736 date "1981".
- 80012753%2F%2Fr892 date "1981".
- 80012763%2F%2Fr85 date "1981".
- 80012765 date "1981".
- 80012783%2F%2Fr853 date "1981".
- 80012791 date "1981".
- 80012796 date "1981".
- 80012801 date "1981".
- 80012806 date "1981".
- 80012808 date "1981".
- 80012836 date "1981".
- 80012846 date "1981".
- 80012849 date "1981".
- 80012855%2F%2Fr84 date "1981".
- 80012862 date "1981".
- 80012872%2F%2Fr893 date "1981".
- 80012879%2F%2Fr83 date "1981".
- 80012886 date "1981".