Second and subsequent footnotes
Second and subsequent references to the same source don’t need to be as detailed as the first note—they just need the minimum information to clearly indicate which text is being referred to.
With a single author:
Provide all the necessary information in the first footnote. If you want to refer to the same source again, a simple method is to give the author’s name, the year of publication and the page number. For example:
1 K Reid, Higher Education or Education for Hire? Language and Values in Australian Universities, CQU Press, Rockhampton, 1996, p. 87.
2...
3 Reid, p. 98.
If two or more works by the same author are referred to in the text, include the title:
1 E Gaskell, North and South, Penguin, Harmondsworth, 1970, p. 228.
2 E Gaskell, The Life of Charlotte Brontë, Penguin, Harmondsworth, 1975, p. 53.
3 Gaskell, North and South, p. 222.
Subsequent references to articles are done in a similar way:
17 M Doyle, ‘Captain Mbaye Diagne’, Granta, vol. 48, August 1994, pp. 99-103.
18 ...
19 Doyle, Granta, p. 101.