Cita APA (7th ed.)

Dudley-Evans, T., & St. John, M. J. (1998). Developments in ESP: A multi-disciplinary approach (1a. ed.). Cambridge University.

Cita Chicago (17th ed.)

Dudley-Evans, Tony, i Maggie Jo St. John. Developments in ESP: A Multi-disciplinary Approach. 1a. ed. Cambridge: Cambridge University, 1998.

Cita MLA (9th ed.)

Dudley-Evans, Tony, i Maggie Jo St. John. Developments in ESP: A Multi-disciplinary Approach. 1a. ed. Cambridge University, 1998.