Cita APA (7a ed.)

Hardisty, D., & Windeatt, S. (1990). Call: Resourse books for teachers (1a ed. 2a reimp.). Oxford University.

Cita Chicago Style (17a ed.)

Hardisty, David, y Scott Windeatt. Call: Resourse Books for Teachers. 1a ed. 2a reimp. Reino Unido: Oxford University, 1990.

Cita MLA (8a ed.)

Hardisty, David, y Scott Windeatt. Call: Resourse Books for Teachers. 1a ed. 2a reimp. Oxford University, 1990.