During his long teaching career, Gruber published several works on the theme of American military history, specifically regarding the American Revolution. Books and the British Army in the Age of the American Revolution examines the books read by military officers during the revolution and how these books may have influenced their techniques and decisions. Another book, The Howe Brothers and the American Revolution, discusses the failure of the Howe Brothers to restore the British government in America.
Gruber, Ira D. (2010). Books and the British Army in the Age of the American Revolution. Chapel Hill: University of North Carolina Press.
ISBN9780807833780.
OCLC676697361.
Gruber, Ira D. (1975). The Howe Brothers and the American Revolution. New York: University of North Carolina Press.
ISBN0393007561.
OCLC333567.
Gruber, Ira D. (1998). John Peebles' American war : the diary of a Scottish grenadier, 1776-1782. Mechanicsburg, PA: Stackpole Books.
ISBN0811708810.
OCLC39782957.