APA-Zitierstil (7. Ausg.)

Open University & Ulph, D. (1979). Political economy and taxation. Open University Press.

Chicago-Zitierstil (17. Ausg.)

Open University und David Ulph. Political Economy and Taxation. Milton Keynes: Open University Press, 1979.

MLA-Zitierstil (8. Ausg.)

Open University und David Ulph. Political Economy and Taxation. Open University Press, 1979.