APA (7th ed.) Citation

Day, M. F. (1851). The Past half century. Samuel B. Oldham.

Chicago Style (17th ed.) Citation

Day, Maurice Fitzgerald. The Past Half Century. Dublin: Samuel B. Oldham, 1851.

MLA (9th ed.) Citation

Day, Maurice Fitzgerald. The Past Half Century. Samuel B. Oldham, 1851.

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