Matches in Library of Congress for { ?s ?p 1981. }
- 80041322 date "1981".
- 80041323 date "1981".
- 80041324 date "1981".
- 80041325%2F%2Fr962 date "1981".
- 80041329%2F%2Fr88 date "1981".
- 80041330 date "1981".
- 80041333 date "1981".
- 80041334%2F%2Fr95 date "1981".
- 80041335 date "1981".
- 80041338 date "1981".
- 80041340 date "1981".
- 80041341 date "1981".
- 80041342%2F%2Fr90 date "1981".
- 80041343 date "1981".
- 80041347 date "1981".
- 80041351 date "1981".
- 80041352 date "1981".
- 80041353 date "1981".
- 80041354 date "1981".
- 80041355%2F%2Fr82 date "1981".
- 80041357%2F%2Fr81 date "1981".
- 80041359 date "1981".
- 80041360 date "1981".
- 80041361 date "1981".
- 80041363 date "1981".
- 80041364 date "1981".
- 80041365%2F%2Fr84 date "1981".
- 80041368 date "1981".
- 80041372 date "1981".
- 80041374 date "1981".
- 80041375 date "1981".
- 80041376%2F%2Fr83 date "1981".
- 80041378 date "1981".
- 80041380 date "1981".
- 80041381 date "1981".
- 80041382 date "1981".
- 80041383%2F%2Fr86 date "1981".
- 80041384%2F%2Fr902 date "1981".
- 80041387 date "1981".
- 80041388%2F%2Fr90 date "1981".
- 80041390 date "1981".
- 80041392 date "1981".
- 80041397 date "1981".
- 80041398 date "1981".
- 80041399 date "1981".
- 80041401 date "1981".
- 80041407%2F%2Fr962 date "1981".
- 80041408%2F%2Fr87 date "1981".
- 80041412 date "1981".
- 80041415%2F%2Fr94 date "1981".
- 80041416 date "1981".
- 80041417%2F%2Fr85 date "1981".
- 80041419 date "1981".
- 80041420 date "1981".
- 80041423 date "1981".
- 80041425 date "1981".
- 80041426 date "1981".
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- 80041432%2F%2Fr84 date "1981".
- 80041433%2F%2Fr982 date "1981".
- 80041436 date "1981".
- 80041440 date "1981".
- 80041441 date "1981".
- 80041442 date "1981".
- 80041443 date "1981".
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- 80041448%2F%2Fr86 date "1981".
- 80041449 date "1981".
- 80041452 date "1981".
- 80041454 date "1981".
- 80041455%2F%2Fr932 date "1981".
- 80041460%2F%2Fr84 date "1981".
- 80041461 date "1981".
- 80041464 date "1981".
- 80041465 date "1981".
- 80041467 date "1981".
- 80041468%2F%2Fr95 date "1981".
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- 80041471%2F%2Fr902 date "1981".
- 80041472 date "1981".
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- 80041474%2F%2Fr85 date "1981".
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- 80041480%2F%2Fr893 date "1981".
- 80041483 date "1981".
- 80041490%2F%2Fr852 date "1981".
- 80041491 date "1981".
- 80041492%2F%2Fr94 date "1981".
- 80041494 date "1981".
- 80041495 date "1981".
- 80041496 date "1981".
- 80041497 date "1981".
- 80041498 date "1981".
- 80041499%2F%2Fr842 date "1981".
- 80041505 date "1981".
- 80041506 date "1981".
- 80041507 date "1981".
- 80041508 date "1981".
- 80041510 date "1981".