Croghan, G., Gage, T., & Peckham, H. H. (1939). George Croghan's journal of his trip to Detroit in 1767: With his correspondence relating thereto ; now published for the first time from the papers of General Thomas Gage in the William L. Clements Library. Ann Arbor : London: The University of Michigan Press ; Humphry Milford, Oxford University Press.

Croghan, George, Thomas Gage, and Howard H. Peckham. George Croghan's Journal of His Trip to Detroit in 1767: With His Correspondence Relating Thereto ; Now Published for the First Time From the Papers of General Thomas Gage in the William L. Clements Library. Ann Arbor : London: The University of Michigan Press ; Humphry Milford, Oxford University Press, 1939.

Croghan, George, Thomas Gage, and Howard H. Peckham. George Croghan's Journal of His Trip to Detroit in 1767: With His Correspondence Relating Thereto ; Now Published for the First Time From the Papers of General Thomas Gage in the William L. Clements Library. Ann Arbor : London: The University of Michigan Press ; Humphry Milford, Oxford University Press, 1939.