APA (7th ed.) Citation

Biber & Quirk. (1999). Longman grammar of spoken and written English. Pearson Education Limited.

Chicago Style (17th ed.) Citation

Biber and Quirk. Longman Grammar of Spoken and Written English. England: Pearson Education Limited, 1999.

MLA (8th ed.) Citation

Biber and Quirk. Longman Grammar of Spoken and Written English. Pearson Education Limited, 1999.

Warning: These citations may not always be 100% accurate.