APA stil citiranja

Gellings, C. W., & Barron, W. L. (. L. (1996). Demand forecasting in the electric utility industry: Demand forecasting in the electric utility industry (2nd ed.). Tulsa, OK: PennWell Pub.

Chicago stil citiranja

Gellings, Clark W., and W. L. (Wallace L.) Barron. Demand forecasting in the electric utility industry: Demand forecasting in the electric utility industry. 2nd ed. Tulsa, OK: PennWell Pub, 1996.

MLA stil citiranja

Gellings, Clark W., and W. L. (Wallace L.) Barron. Demand forecasting in the electric utility industry: Demand forecasting in the electric utility industry. 2nd ed. Tulsa, OK: PennWell Pub, 1996.