Kuper, A., & Kuper, J. (1985). The Social science encyclopedia. Routledge & Kegan Paul.
Cita Chicago (17th ed.)Kuper, Adam, i Jessica Kuper. The Social Science Encyclopedia. London ; Boston: Routledge & Kegan Paul, 1985.
Cita MLA (9th ed.)Kuper, Adam, i Jessica Kuper. The Social Science Encyclopedia. Routledge & Kegan Paul, 1985.