Gaya APA
Ellison, J.R., Pritchard, J.A.T.. (1987).
Security in office systems .
Manchester:
NCC Publications.
Gaya Chicago
Ellison, J.R., Pritchard, J.A.T..
Security in office systems.
Manchester:
NCC Publications,
1987.
Text.
Gaya MLA
Ellison, J.R., Pritchard, J.A.T..
Security in office systems.
Manchester:
NCC Publications,
1987.
Text.
Gaya Turabian
Ellison, J.R., Pritchard, J.A.T..
Security in office systems.
Manchester:
NCC Publications,
1987.
Print.