Cita APA (7a ed.)

Radley, P., & Millerchip, C. (1989). Mode 2. Collins E.L.T.

Cita Chicago Style (17a ed.)

Radley, Paul, y Chris Millerchip. Mode 2. Londres: Collins E.L.T, 1989.

Cita MLA (9a ed.)

Radley, Paul, y Chris Millerchip. Mode 2. Collins E.L.T, 1989.