1.
, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , . Social economics. London: Macmillan; 1989.
, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , et . Social economics. London : Macmillan, 8 mai 1989. ISBN 0-333-49529-2
Robert L, Ehrlich Isaac, Barlow R, Coale Ansley J, Mueser Peter, Phelps Edmund S., . . . Newman Peter. (1989). Social economics. Macmillan.
MLA (8th ed.) CitationRobert L, et al. Social Economics. Macmillan, 1989.
Warning: These citations may not always be 100% accurate.