Special purpose circuit boards /
Palmer, J.(John),(Agricultural engineer),author.
Owen, G. M.(Gwilym Morris),1936-2010,author.
National Institute of Agricultural Engineering (Great Britain).Scottish Station.
Unbound.
"Not for publication."--stamped on cover leaf.
Report dated August 1971.
Includes bibliographical references (unnumbered leaf following leaf 3).
PDP-8 (Computer)
Computer interfaces.