Gibson, W. (1850). Three lectures, preliminary to a course on the principles and practice of surgery: Delivered on the 4th, 8th, and 9th of October, 1849, before the Medical Class of the University of Pennsylvania. Philadelphia: Gratton & M'Lean.

Gibson, William. Three Lectures, Preliminary to a Course On the Principles and Practice of Surgery: Delivered On the 4th, 8th, and 9th of October, 1849, Before the Medical Class of the University of Pennsylvania. Philadelphia: Gratton & M'Lean, 1850.

Gibson, William. Three Lectures, Preliminary to a Course On the Principles and Practice of Surgery: Delivered On the 4th, 8th, and 9th of October, 1849, Before the Medical Class of the University of Pennsylvania. Philadelphia: Gratton & M'Lean, 1850.