TY  - BOOK
AU  - Katzan,Harry
AU  - Van Nostrand Reinhold Company
TI  - Operating systems: a pragmatic approach 
T2  - Computer science series
SN  - 0442247389
PY  - 1986///
CY  - New York : 
PB  - Van Nostrand Reinhold, 
KW  - Operating systems (Computers)
N1  - Includes index; Bibliography: p. 421-432
ER  -