TY  - BOOK
AU  - Katzan,Harry
TI  - Operating systems: a pragmatic approach 
T2  - Computer science series
SN  - 0442247389
U1  - 005.43 19
PY  - 1986///
CY  - New York
PB  - Van Nostrand Reinhold
KW  - Operating systems (Computers)
N1  - Includes bibliographical references and index
ER  -