| File | Size | Last Modified |
|---|---|---|
| 12-Back of title page.pdf | 228.37 KB | Mar 17th 2019 at 7:01pm |
| 12-Final page (page 284).pdf | 202.27 KB | Mar 17th 2019 at 7:01pm |
| 12-Front page Russian Academy book seemingly on SETI search.pdf | 641.15 KB | Mar 17th 2019 at 7:01pm |
| 12-Title page of book published in 1981 and dedicated to Drake same year.pdf | 245.68 KB | Mar 17th 2019 at 7:01pm |