Gaya APA

SUMMERS, D, . (2009). DICTIONARY OF CONTEMPORARY ENGLISH FOR ADVANCED LEARNERS (NEW EDITION) (ed.5). London: Longman Group limited.

Gaya MLA

SUMMERS, Della, . "DICTIONARY OF CONTEMPORARY ENGLISH FOR ADVANCED LEARNERS (NEW EDITION)". ed.5 London: Longman Group limited, 2009. Text.