APA (7th ed.) Citation

Alex Thom & Co., Ltd., Dublin. (1846). Thom's Irish Almanac and official directory. Alexander Thom, Printer and publisher, 87, Abbey-Street. Longman, Brown, Green, and Longmans, London.

Chicago Style (17th ed.) Citation

Alex Thom & Co., Ltd., Dublin. Thom's Irish Almanac and Official Directory. Dublin: Alexander Thom, Printer and publisher, 87, Abbey-Street. Longman, Brown, Green, and Longmans, London, 1846.

MLA (9th ed.) Citation

Alex Thom & Co., Ltd., Dublin. Thom's Irish Almanac and Official Directory. Alexander Thom, Printer and publisher, 87, Abbey-Street. Longman, Brown, Green, and Longmans, London, 1846.

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