TY  - BOOK
AU  - Clark, David D.
AU  - Graham, Robert M.
AU  - Saltzer, Jerome H.
AU  - Schroeder, Michael
TI  - The classroom information and computing service
U1  - 651.26 
PY  - 1971///
CY  - Cambridge
PB  - Massachusetts Institute of Technology Project MAC
KW  - Time-sharing computer systems
KW  - Programming (electronic computers)
ER  -