Cita APA (7a ed.)

Silber, W. L. (1981). Innovation, competition, and new contract design in futures markets. [s.n.].

Cita Chicago Style (17a ed.)

Silber, William L. Innovation, Competition, and New Contract Design in Futures Markets. [S.l.]: [s.n.], 1981.

Cita MLA (9a ed.)

Silber, William L. Innovation, Competition, and New Contract Design in Futures Markets. [s.n.], 1981.