Cita APA (7th ed.)

Edmonds, S., Frizell, R., & Kindler, D. (1979). Practice tests for RSA: English as a Foreign Language. Stage Two. Thomas Nelson and Sons Limited.

Cita Chicago (17th ed.)

Edmonds, Stephen, Richard Frizell, i Don Kindler. Practice Tests for RSA: English as a Foreign Language. Stage Two. Londres: Thomas Nelson and Sons Limited, 1979.

Cita MLA (9th ed.)

Edmonds, Stephen, et al. Practice Tests for RSA: English as a Foreign Language. Stage Two. Thomas Nelson and Sons Limited, 1979.