Talk by D. D. Waters, J. P., Assistant Director of Education (Technical) at the seminar "Design of Courses of English for Specific Purposes", for teachers in technical institutes, held on Wednesday, 11th June 1980 at 9.30 a.m. at the Lee Wai Lee Technical Institute. Seminar was organised by Technical Teachers' College.
Waters, D. (1980). A speech of English for specific purposes (ESP). Retrieved from http://repository.vtc.edu.hk/ive-adm-others-sp/10