Cita APA (7a ed.)

Gibbon, D., & Buckland, S. (1994). Waystage 1. Student´s Manual. Spanish edition. Wall Street Study Centre.

Cita Chicago Style (17a ed.)

Gibbon, David, y Simon Buckland. Waystage 1. Student´s Manual. Spanish Edition. Wall Street Study Centre, 1994.

Cita MLA (9a ed.)

Gibbon, David, y Simon Buckland. Waystage 1. Student´s Manual. Spanish Edition. Wall Street Study Centre, 1994.