Gaya APA
Simpson, D.. (1985).
System Developmentand Monitoring Designs .
:
s.n..
Gaya Chicago
Simpson, D..
System Developmentand Monitoring Designs.
:
s.n.,
1985.
Text.
Gaya MLA
Simpson, D..
System Developmentand Monitoring Designs.
:
s.n.,
1985.
Text.
Gaya Turabian
Simpson, D..
System Developmentand Monitoring Designs.
:
s.n.,
1985.
Print.