APA (7th ed.) Citation
Alexander, L. G. (1989). Longman Englisch Grammar (4. Edition.). Longman Group UK.
Chicago Style (17th ed.) Citation
Alexander, Louis George. Longman Englisch Grammar. 4. Edition. London: Longman Group UK, 1989.
MLA (9th ed.) Citation
Alexander, Louis George. Longman Englisch Grammar. 4. Edition. Longman Group UK, 1989.
Warning: These citations may not always be 100% accurate.