APA-viite

Gupta, P. K. (2002). Problems in operations research: Principles and solutions. S Chand.

Chicago-tyylinen lähdeviittaus

Gupta, P K. Problems in Operations Research: Principles and Solutions. New Delhi: S Chand, 2002.

MLA-viite

Gupta, P K. Problems in Operations Research: Principles and Solutions. S Chand, 2002.