APA (7th ed.) Citation

Low, O. (1975). A new certificate of proficiency English: Course for foreign students with use of English (3.ed.). Arnold.

Chicago Style (17th ed.) Citation

Low, Ona. A New Certificate of Proficiency English: Course for Foreign Students with Use of English. 3.ed. London: Arnold, 1975.

MLA (9th ed.) Citation

Low, Ona. A New Certificate of Proficiency English: Course for Foreign Students with Use of English. 3.ed. Arnold, 1975.