APA (7th ed.) Citation

Alexander, L. G., & Close, R. A. (1988). Longman english grammar. Longman.

Chicago Style (17th ed.) Citation

Alexander, L. G., and Reginald Arthur Close. Longman English Grammar. London [etc.]: Longman, 1988.

MLA (9th ed.) Citation

Alexander, L. G., and Reginald Arthur Close. Longman English Grammar. Longman, 1988.

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