Matches in Library of Congress for { ?s ?p 1981. }
- 79066515%2F%2Fr92 date "1981".
- 79066627 date "1981".
- 79066628 date "1981".
- 79066630 date "1981".
- 79066688 date "1981".
- 79066690 date "1981".
- 79066693 date "1981".
- 79066709%2F%2Fr88 date "1981".
- 79066710 date "1981".
- 79066730%2F%2Fr89 date "1981".
- 79066747 date "1981".
- 79066865%2F%2Fr85 date "1981".
- 79066891 date "1981".
- 79067014 date "1981".
- 79067018 date "1981".
- 79067042 date "1981".
- 79067062%2F%2Fr87 date "1981".
- 79067125%2F%2Fr912 date "1981".
- 79067205%2F%2Fr85 date "1981".
- 79067306 date "1981".
- 79067355%2F%2Fr85 date "1981".
- 79067527%2F%2Fr95 date "1981".
- 79067598 date "1981".
- 79067600 date "1981".
- 79067603 date "1981".
- 79067618 date "1981".
- 79067672 date "1981".
- 79067701 date "1981".
- 79067717%2F%2Fr91 date "1981".
- 79067724%2F%2Fr872 date "1981".
- 79067770 date "1981".
- 79067772 date "1981".
- 79067776 date "1981".
- 79067777 date "1981".
- 79067795 date "1981".
- 79067819 date "1981".
- 79067823%2F%2Fr96 date "1981".
- 79067874 date "1981".
- 79083883 date "1981".
- 79083907%2F%2Fr984 date "1981".
- 79084333 date "1981".
- 79084479%2F%2Fr83 date "1981".
- 79084797 date "1981".
- 79084848%2F%2Fr934 date "1981".
- 79084938%2F%2Fr92 date "1981".
- 79087601%2F%2Fr82 date "1981".
- 79087742 date "1981".
- 79087791 date "1981".
- 79087842 date "1981".
- 79088509 date "1981".
- 79088699 date "1981".
- 79088818 date "1981".
- 79089051 date "1981".
- 79089099%2F%2Fr84 date "1981".
- 79089193 date "1981".
- 79089356 date "1981".
- 79089358 date "1981".
- 79089500 date "1981".
- 79089553%2F%2Fr872 date "1981".
- 79089571%2F%2Fr82 date "1981".
- 79089631 date "1981".
- 79089759 date "1981".
- 79089870 date "1981".
- 79090239 date "1981".
- 79090362 date "1981".
- 79090665 date "1981".
- 79090760 date "1981".
- 79091005%2F%2Fr852 date "1981".
- 79091006 date "1981".
- 79091134 date "1981".
- 79091143 date "1981".
- 79091144 date "1981".
- 79091151 date "1981".
- 79091236%2F%2Fr85 date "1981".
- 79091390%2F%2Fr89 date "1981".
- 79091413 date "1981".
- 79091445 date "1981".
- 79091515 date "1981".
- 79091519 date "1981".
- 79091547 date "1981".
- 79091656 date "1981".
- 79091658 date "1981".
- 79091708%2F%2Fr84 date "1981".
- 79091976 date "1981".
- 79092001%2F%2Fr862 date "1981".
- 79092123 date "1981".
- 79092216%2F%2Fr83 date "1981".
- 79092221 date "1981".
- 79092270 date "1981".
- 79092272 date "1981".
- 79092362 date "1981".
- 79092365%2F%2Fr84 date "1981".
- 79092366 date "1981".
- 79092372 date "1981".
- 79092375%2F%2Fr85 date "1981".
- 79092376%2F%2Fr93 date "1981".
- 79092433 date "1981".
- 79092435 date "1981".
- 79092456%2FMN%2Fr98 date "1981".
- 79092468 date "1981".