Dyfyniad APA

Optner, S. L. (1965). Systems analysis for business and industrial problem solving. Prentice hall.

Dyfyniad Arddull Chicago

Optner, Stanford L. Systems Analysis for Business and Industrial Problem Solving. New Jersey: Prentice hall, 1965.

Dyfyniad MLA

Optner, Stanford L. Systems Analysis for Business and Industrial Problem Solving. Prentice hall, 1965.

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