Nagarath, I., & Gopal, M. (1982). Systems: Modelling and analysis. TMH.
Dyfyniad Arddull ChicagoNagarath, I.J, and M. Gopal. Systems: Modelling and Analysis. New Delhi: TMH, 1982.
Dyfyniad MLANagarath, I.J, and M. Gopal. Systems: Modelling and Analysis. TMH, 1982.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.