APA (7th ed.) Citation
Harrison, J. (1990). Longman Pitman office dictionary: (and A-Z office guide). Longman Group UK.
Chicago Style (17th ed.) Citation
Harrison, John. Longman Pitman Office Dictionary: (and A-Z Office Guide). Harlow: Longman Group UK, 1990.
MLA (9th ed.) Citation
Harrison, John. Longman Pitman Office Dictionary: (and A-Z Office Guide). Longman Group UK, 1990.
Warning: These citations may not always be 100% accurate.