Matches in Library of Congress for { ?s ?p 1981. }
- 80041675 date "1981".
- 80041676 date "1981".
- 80041678 date "1981".
- 80041680 date "1981".
- 80041681 date "1981".
- 80041683 date "1981".
- 80041684 date "1981".
- 80041685 date "1981".
- 80041686 date "1981".
- 80041687%2F%2Fr84 date "1981".
- 80041688%2F%2Fr953 date "1981".
- 80041690%2F%2Fr852 date "1981".
- 80041691%2F%2Fr85 date "1981".
- 80041692 date "1981".
- 80041694%2F%2Fr91 date "1981".
- 80041695%2F%2Fr83 date "1981".
- 80041696 date "1981".
- 80041698 date "1981".
- 80041701%2F%2Fr88 date "1981".
- 80041702%2F%2Fr912 date "1981".
- 80041703 date "1981".
- 80041705 date "1981".
- 80041708 date "1981".
- 80041709 date "1981".
- 80041710 date "1981".
- 80041715 date "1981".
- 80041716 date "1981".
- 80041720 date "1981".
- 80041721 date "1981".
- 80041722 date "1981".
- 80041723 date "1981".
- 80041724 date "1981".
- 80041725 date "1981".
- 80041726%2F%2Fr952 date "1981".
- 80041727%2F%2Fr97 date "1981".
- 80041728%2F%2Fr94 date "1981".
- 80041729%2F%2Fr86 date "1981".
- 80041730 date "1981".
- 80041731 date "1981".
- 80041735%2F%2Fr89 date "1981".
- 80041736 date "1981".
- 80041739 date "1981".
- 80041740 date "1981".
- 80041744%2F%2Fr90 date "1981".
- 80041746 date "1981".
- 80041747 date "1981".
- 80041748 date "1981".
- 80041750 date "1981".
- 80041752 date "1981".
- 80041753 date "1981".
- 80041754 date "1981".
- 80041755%2F%2Fr94 date "1981".
- 80041756 date "1981".
- 80041757 date "1981".
- 80041758 date "1981".
- 80041769 date "1981".
- 80041770%2F%2Fr97 date "1981".
- 80041772%2F%2Fr952 date "1981".
- 80041773 date "1981".
- 80041774%2F%2Fr882 date "1981".
- 80041776 date "1981".
- 80041780 date "1981".
- 80041781 date "1981".
- 80041782 date "1981".
- 80041783 date "1981".
- 80041784 date "1981".
- 80041785 date "1981".
- 80041786 date "1981".
- 80041787 date "1981".
- 80041788%2F%2Fr983 date "1981".
- 80041789%2F%2Fr852 date "1981".
- 80041792 date "1981".
- 80041793 date "1981".
- 80041794 date "1981".
- 80041795%2F%2Fr87 date "1981".
- 80041796 date "1981".
- 80041799%2F%2Fr91 date "1981".
- 80041801 date "1981".
- 80041802 date "1981".
- 80041805 date "1981".
- 80041809%2F%2Fr912 date "1981".
- 80041810%2F%2Fr89 date "1981".
- 80041811 date "1981".
- 80041812 date "1981".
- 80041813 date "1981".
- 80041814 date "1981".
- 80041816%2F%2Fr85 date "1981".
- 80041817 date "1981".
- 80041818 date "1981".
- 80041819 date "1981".
- 80041821%2F%2Fr832 date "1981".
- 80041822 date "1981".
- 80041823 date "1981".
- 80041824 date "1981".
- 80041826 date "1981".
- 80041827%2F%2Fr92 date "1981".
- 80041829 date "1981".
- 80041831 date "1981".
- 80041833 date "1981".
- 80041834%2F%2Fr84 date "1981".