Cita APA (7a ed.)

Radley, P., & Sharley, A. .. D. (1987). Trio 3. Heinemann.

Cita Chicago Style (17a ed.)

Radley, Paul, y Alan . Driscoll Sharley. Trio 3. Oxford: Heinemann, 1987.

Cita MLA (9a ed.)

Radley, Paul, y Alan . Driscoll Sharley. Trio 3. Heinemann, 1987.