Παραπομπή APA

Kelly, R. (1970). The use of English for Technical Students (2nd ed.). Harrap.

Παραπομπή Chicago Style

Kelly, R.A. The Use of English for Technical Students. 2nd ed. London: Harrap, 1970.

Παραπομπή MLA

Kelly, R.A. The Use of English for Technical Students. 2nd ed. Harrap, 1970.