The term ‘ibid.’ should be used very sparingly and limited to those situations where there is no possibility of confusion, such as after a second reference which is separated from its predecessor by no more than four lines of typescript.
Do not use ‘ibid.’ to abbreviate only part of a reference: use ‘Ibid., pp. 45–71’ not ‘Jones, ibid., pp. 45–71’.
Use the capitalized form ‘Ibid.’ at the start of a note.
‘Id.’ should be avoided since the Latin idem refers only to a single male author.