^p. 240 Longman, T. The Plays of William Shakspeare: In Fifteen Volumes. With the Corrections and Illustrations of Various Commentators. To which are Added Notes, Volume 5 William Shakespeare T. Longman, 1793
^p. 190 Yule, Henry Fortification for Officers of the Army and Students of Military History (Google eBook)1851
^p.581 Shakespeare, William The Stratford Shakspere: The Tempest. Two Gentlemen of Verona. The Merry Wives of Windsor. Measure for Measure. Comedy of Errors. Much Ado About Nothing. Love's Labour's Lost (Google eBook)C:Griffin & co., 1867
^p.74 Estes, Kenneth W. & Heinl, Robert Debs Handbook for Marine NCOs Naval Institute Press, 1996