APA-viite (7. p.)
Petre, M., & Rugg, G. (2010). The unwritten rules of PhD research (2nd ed.). Open University Press.
Chicago-viite (17. p.)
Petre, Marian, ja Gordon Rugg. The Unwritten Rules of PhD Research. 2nd ed. Maidenhead, England: Open University Press, 2010.
MLA-viite (9. p.)
Petre, Marian, ja Gordon Rugg. The Unwritten Rules of PhD Research. 2nd ed. Open University Press, 2010.
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