Style de citation APA

Low, O. (1975). New certificate of proficiency english course with practice and test papers (3rd. ed.). Edward Arnold.

Style de citation Chicago

Low, Ona. New Certificate of Proficiency English Course with Practice and Test Papers. 3rd. ed. London: Edward Arnold, 1975.

Style de citation MLA

Low, Ona. New Certificate of Proficiency English Course with Practice and Test Papers. 3rd. ed. Edward Arnold, 1975.