Hill, T. (1995). The essence of operations management. Prentice hall.
Chicago Style aipamenaHill, Terry. The Essence of Operations Management. New delhi: Prentice hall, 1995.
MLA aipamenaHill, Terry. The Essence of Operations Management. Prentice hall, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.