Ray, G. C., & Hossain, E. (2007). Operation research (First edition.). Titas Publications.
Chicago Style (17th ed.) ZitazioaRay, Ganesh Chnadra, eta Elias Hossain. Operation Research. First edition. Dhaka: Titas Publications, 2007.
MLA (9th ed.) ZitazioaRay, Ganesh Chnadra, eta Elias Hossain. Operation Research. First edition. Titas Publications, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.