Widok standardowy
Widok MARC
Kratz, Martin P. J. (Personal Name)
Fites, P.E. Control and security of computer information systems, c1989: CIP t.p. (Martin P.J. Kratz, LLB; Ogilvie and Company)
Fites, P. E. Catching computer viruses, 1989: CIP t.p. (Martin Kratz)