Biber & Quirk. (1999). Longman grammar of spoken and written English. Pearson Education Limited.
Chicago Style (17th ed.) CitationBiber and Quirk. Longman Grammar of Spoken and Written English. England: Pearson Education Limited, 1999.
MLA (8th ed.) CitationBiber and Quirk. Longman Grammar of Spoken and Written English. Pearson Education Limited, 1999.
Warning: These citations may not always be 100% accurate.