That one, plus 198806_Byte_Magazine_Vol_13-06_New_Benchmarks_Ultra_High-speed_Modems.pdf
and 198905_Byte_Magazine_Vol_14-05_Unix_CAD_and_Technology_Breakthroughs.pdf
are corrupted on the
vintageapple.org web site (shows up as 'data'
instead of "PDF document" if you do a "file" on them). If there are
others I don't know, but at least the rest are detected as PDF.
Good PDF copies of the three can be found at
archive.org though.