001.424
B617S
           Birtwistle, G M
               A System for discrete event modelling on Simula \ G M Birtwistle - London : Macmillan, 1979.
               213p. - Macmillan computer science series/ed. by F H Sumner .
                ISBN: 0-333-23881-8
                Subjects: SIMULA(computer program language); Computers; Simulation methods; Computer-Simulation methods.