APA (7th ed.) Citation

O'Brien Press. (1981). The O'Brien Press, catalogue of books 1981. O'Brien Press.

Chicago Style (17th ed.) Citation

O'Brien Press. The O'Brien Press, Catalogue of Books 1981. [Dublin]: O'Brien Press, 1981.

MLA (9th ed.) Citation

O'Brien Press. The O'Brien Press, Catalogue of Books 1981. O'Brien Press, 1981.

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