APA (7e ed.) Bronvermelding
Petre, M., & Rugg, G. (2010). The unwritten rules of PhD research (2nd ed.). Open University Press.
Chicago (17e ed.) Bronvermelding
Petre, Marian, en Gordon Rugg. The Unwritten Rules of PhD Research. 2nd ed. Maidenhead, England: Open University Press, 2010.
MLA (9e ed.) Bronvermelding
Petre, Marian, en Gordon Rugg. The Unwritten Rules of PhD Research. 2nd ed. Open University Press, 2010.
Let op: Deze citaties zijn niet altijd 100% accuraat.