ELLMAN, M. (1979). Socialist planning. C.U.Pr..
Cita Chicago (17th ed.)ELLMAN, Michael. Socialist Planning. Cambridge: C.U.Pr., 1979.
Cita MLA (9th ed.)ELLMAN, Michael. Socialist Planning. C.U.Pr., 1979.
Atenció: Aquestes cites poden no estar 100% correctes.