Panneerselvam R. (2012). Operations research (2nd ed.). PHI Learning.
Chicago Style aipamenaPanneerselvam R. Operations Research. 2nd ed. New Delhi: PHI Learning, 2012.
MLA aipamenaPanneerselvam R. Operations Research. 2nd ed. PHI Learning, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.