Holland, John M. Advanced 6502 interfacing / by John M. Holland (illustrated by D.B. Clemons). - Indianapolis, Ind. : H. W. Sams, 1982. - 190 p. : ill. ; 22 cm. - The Blacksburg continuing education series. . '21836' -- Cover. Includes index. ISBN: 0672218364 pbk Subjects--Topical Terms: Computer interfaces.6502 (Computer).