APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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