Cita APA

Petre, M., & Rugg, G. (2010). The unwritten rules of PhD research (2nd ed.). Tata McGraw Hill Education Private Limited.

Chicago Edition Citation

Petre, Marian, i Gordon Rugg. The Unwritten Rules of PhD Research. 2nd ed. New Delhi: Tata McGraw Hill Education Private Limited, 2010.

Cita MLA

Petre, Marian, i Gordon Rugg. The Unwritten Rules of PhD Research. 2nd ed. Tata McGraw Hill Education Private Limited, 2010.