Chicago: Carl von Clausewitz, "Book II. On The Theory of War," On War, Vol. 1, ed. F. N. Maude and trans. Vom Kriege, J. J. Graham in Carl von Clausewitz, On War, trans. Vom Kriege, J. J. Graham Original Sources, accessed May 30, 2023, http://www.originalsources.com/Document.aspx?DocID=CK3F15U9FJSW3SX.
MLA: Clausewitz, Carl von. "Book II. On The Theory of War." On War, Vol. 1, edited by F. N. Maude, and translated by Vom Kriege, J. J. Graham, in Clausewitz, Carl von. On War, translted by Vom Kriege, J. J. Graham, Vol. 1, Original Sources. 30 May. 2023. http://www.originalsources.com/Document.aspx?DocID=CK3F15U9FJSW3SX.
Harvard: Clausewitz, CV, 'Book II. On The Theory of War' in On War, Vol. 1, ed. and trans. . cited in Clausewitz, CV 1909, On War, trans. . Original Sources, retrieved 30 May 2023, from http://www.originalsources.com/Document.aspx?DocID=CK3F15U9FJSW3SX.