Gaya APA
Wilkes, F.M.. (1987).
Elements of operational research .
New York:
McGraw Hill.
Gaya Chicago
Wilkes, F.M..
Elements of operational research.
New York:
McGraw Hill,
1987.
Text.
Gaya MLA
Wilkes, F.M..
Elements of operational research.
New York:
McGraw Hill,
1987.
Text.
Gaya Turabian
Wilkes, F.M..
Elements of operational research.
New York:
McGraw Hill,
1987.
Print.