APA Style
PC Tools Utilities. (1989).
(n,p):
Central Point Software.
Chicago Style
PC Tools Utilities.
.
(n,p):
Central Point Software,
1989.
Text.
MLA Style
PC Tools Utilities.
.
(n,p):
Central Point Software,
1989.
Text.
Turabian Style
PC Tools Utilities.
(n,p):
Central Point Software,
1989.
Print.