APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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