Cita APA (7a ed.)

Working, H. (1953). Futures trading and hedging. [s.n.].

Cita Chicago Style (17a ed.)

Working, Holbrook. Futures Trading and Hedging. [S.l.]: [s.n.], 1953.

Cita MLA (9a ed.)

Working, Holbrook. Futures Trading and Hedging. [s.n.], 1953.