Gaya APA
The PC Virus Control Handbook. (1990).
:
.
Gaya Chicago
The PC Virus Control Handbook.
Second Edition.
:
,
1990.
Text.
Gaya MLA
The PC Virus Control Handbook.
Second Edition.
:
,
1990.
Text.
Gaya Turabian
The PC Virus Control Handbook.
:
,
1990.
Print.