Dyfyniad APA

elshafei, a. (1969). an introduction to simulation. National Planning Institute.

Dyfyniad Arddull Chicago

elshafei, alwalid. An Introduction to Simulation. cairo: National Planning Institute, 1969.

Dyfyniad MLA

elshafei, alwalid. An Introduction to Simulation. National Planning Institute, 1969.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.