Cita APA (7a ed.)

Working, H. (1962). New concepts concerning futures markets and prices. [s.n.].

Cita Chicago Style (17a ed.)

Working, Holbrook. New Concepts Concerning Futures Markets and Prices. [S.l.]: [s.n.], 1962.

Cita MLA (9a ed.)

Working, Holbrook. New Concepts Concerning Futures Markets and Prices. [s.n.], 1962.