Flanagan, J., Dix, E. R. M., & Joly, J. R. (1843). A discourse of the round towers of Ireland: In which the errors of the various writers on that subject are detected and confuted, and the true cause of so many differences among the learned, on the question of their use and history, is assigned and demonstrated. Printed for the author by Thomas Kelley.

Flanagan, John, et al. A Discourse of the Round Towers of Ireland: In Which the Errors of the Various Writers on That Subject Are Detected and Confuted, and the True Cause of so Many Differences Among the Learned, on the Question of Their Use and History, Is Assigned and Demonstrated. Printed for the author by Thomas Kelley, 1843.