TY  - GEN
AU  - Mednik, S
AU  - Dzh. Donovan
TI  - Operatsionnye sistemy
U1  - 681.142.2 
PY  - 1978///
CY  - Moskva
PB  - Mir
N1  - Scriere chirilica; Operating system - Stuart E. Madnick; John J. Donovan (New York; St. Louis; San Francisko - McGraw - Hill Book Company - 1974.)
ER  -