Gaya APA
Optner, Stanford (ed). (1973).
System analysis .
New York:
Penguin Books.
Gaya Chicago
Optner, Stanford (ed).
System analysis.
New York:
Penguin Books,
1973.
Text.
Gaya MLA
Optner, Stanford (ed).
System analysis.
New York:
Penguin Books,
1973.
Text.
Gaya Turabian
Optner, Stanford (ed).
System analysis.
New York:
Penguin Books,
1973.
Print.