Παραπομπή σε μορφή APA (7η εκδ.)

Buffa, E. S. (1981). Programmed learning aid for production and operations management (Rev. ed.). Learning Systems.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Buffa, Elwood Spencer. Programmed Learning Aid for Production and Operations Management. Rev. ed. Homewood, Ill: Learning Systems, 1981.

Παραπομπή σε μορφή MLA (9th εκδ.)

Buffa, Elwood Spencer. Programmed Learning Aid for Production and Operations Management. Rev. ed. Learning Systems, 1981.