Citazione Stile APA (7a Edizione)
Petre, M., & Rugg, G. (2010). The unwritten rules of PhD research (2nd ed.). Open University Press.
Citazione stile Chigago Style (17a edizione)
Petre, Marian, e Gordon Rugg. The Unwritten Rules of PhD Research. 2nd ed. Maidenhead, England: Open University Press, 2010.
Citatione MLA (9a ed.)
Petre, Marian, e Gordon Rugg. The Unwritten Rules of PhD Research. 2nd ed. Open University Press, 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.