TY  - BOOK
AU  - Longley,Dennis  .
AU  - Shain,Michael  .
TI  - Expanding and networking microcomputers: the complete and up to date guide to over 600 boards for apple and IBM PCs / 
U1  - 004.616 
PY  - 1985///
CY  - London : 
PB  - Macmillan , 
KW  - Communications for microcomputer
ER  -