"Science81" ~ April 1981 issue -- or, Science '81 magazine

The Electrical Experimenter, 81 back issues, Science, Invention Magazine DVD V47

The Electrical Experimenter, 81 Issues 1915 - 1922 Science and Invention DVD V47

Science81 April 1981 issue magazine

"Science 81" Magazine - MAY 1981 Issue

Vtg March 1981 SCIENCE81 Magazine Lucy Fossil Penny Arcade Clipper Ship Science

Science Fiction Digest Oct-Nov/ '81/ Issue 1/ SB/ Asimov, Benford, Cherryl/ VG++

Science Fiction Chronicle Newsmagazine June 1986 Issue 81