...

... Calculating CRCs by Bits and Bytes", BYTE Magazine, September 1986

It is online in the BYTES Magazine archives ... if this link doesn't work, just search for it on BYTE's site.

http://ia701504.us.archive.org/7/items/byte-magazine-1986-09/1986_09_BYTE_11...

Clint Bradford, K6LCS 909-241-7666