Gaya APA
NAGRATH, I J, GOPAL M. (1990).
SYSTEM MODELLING AND ANALYSIS .
New York:
MCGRAW-HILL.
Gaya Chicago
NAGRATH, I J, GOPAL M.
SYSTEM MODELLING AND ANALYSIS.
New York:
MCGRAW-HILL,
1990.
Text.
Gaya MLA
NAGRATH, I J, GOPAL M.
SYSTEM MODELLING AND ANALYSIS.
New York:
MCGRAW-HILL,
1990.
Text.
Gaya Turabian
NAGRATH, I J, GOPAL M.
SYSTEM MODELLING AND ANALYSIS.
New York:
MCGRAW-HILL,
1990.
Print.