Cita APA (7a ed.)

(1991). Trading currency markets on a 24-hour basis. [s.n.].

Cita Chicago Style (17a ed.)

Trading Currency Markets on a 24-hour Basis. [S.l.]: [s.n.], 1991.

Cita MLA (9a ed.)

Trading Currency Markets on a 24-hour Basis. [s.n.], 1991.