Biber, D., Conrad, S., & Leech, G. N. (2002). Longman student grammar of spoken and written English. Pearson Education Limited.
Chicago Style (17th ed.) CitationBiber, Douglas, Susan Conrad, and Geoffrey N. Leech. Longman Student Grammar of Spoken and Written English. Londres: Pearson Education Limited, 2002.
MLA (9th ed.) CitationBiber, Douglas, et al. Longman Student Grammar of Spoken and Written English. Pearson Education Limited, 2002.
Warning: These citations may not always be 100% accurate.