Huckfeldt,R Robert, & Hohfeld,C W. (1982). Dynamic modelling: Introduction. Sage.
Dyfyniad Arddull ChicagoHuckfeldt,R Robert, and Hohfeld,C W. Dynamic Modelling: Introduction. London: Sage, 1982.
Dyfyniad MLAHuckfeldt,R Robert, and Hohfeld,C W. Dynamic Modelling: Introduction. Sage, 1982.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.