APA (7. basım) Alıntı

Open University & Penney, K. (1974). Production and supply. Open U.P..

Chicago Style (17. basım) Atıf

Open University ve Ken Penney. Production and Supply. Milton Keynes: Open U.P., 1974.

MLA (8th ed.) Atıf

Open University ve Ken Penney. Production and Supply. Open U.P., 1974.