APA aipamena

Dudley-Evans, T., & St. John, M. (1998). Developments in English for specific purposes. Cambridge, U.K: Cambridge University Press.

Chicago Style aipamena

Dudley-Evans, Tony, và Maggie-Jo St. John. Developments in English for Specific Purposes. Cambridge, U.K: Cambridge University Press, 1998.

MLA aipamena

Dudley-Evans, Tony, và Maggie-Jo St. John. Developments in English for Specific Purposes. Cambridge, U.K: Cambridge University Press, 1998.