You can find the full set of 1980 issues on several dedicated archive sites:
: Contains a large ZIP archive (182.8 MB) that covers the entire period from 1973 to 1980. Archive Contents and Tools
: If you download the bulk archives, use WinRAR or 7-Zip to extract the files.
: Most scans are in DjVu to save space. You will need a reader like WinDjView to open them.
: Offers a complete list of 1980 issues (№1 to №12) with descriptions and DjVu download links .