Introducing XTRAN.
Com-Share 1969, U.K. printing July 1971; 97 pages, short index and introductory matter.
Com-Share 1969, U.K. printing July 1971; 97 pages, short index and introductory matter.
Prentice-Hall NJ, 1969, third printing 1970; 282 pages, index, appendices, some illustrations.
NCC Publications, National Computing Centre, UK 1974m 106 pages, photographs of 1970s computer terminals.