APA (7th ed.) Citation

MacNeill, T. (1990). The great towers of early Irish castles.

Chicago Style (17th ed.) Citation

MacNeill, T.E. The Great Towers of Early Irish Castles. 1990.

MLA (9th ed.) Citation

MacNeill, T.E. The Great Towers of Early Irish Castles. 1990.

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