Colson, E. Tradition and contract: The problem of social order. Aldine De Gruyter.
Cita Chicago (17th ed.)Colson, Elizabeth. Tradition and Contract: The Problem of Social Order. New York: Aldine De Gruyter.
Cita MLA (9th ed.)Colson, Elizabeth. Tradition and Contract: The Problem of Social Order. Aldine De Gruyter.
Atenció: Aquestes cites poden no estar 100% correctes.