Cita APA (7th ed.)
O'Leary, Z. (2014). The essential guide to doing your research project (2nd ed.). SAGE.
Cita Chicago (17th ed.)
O'Leary, Zina. The Essential Guide to Doing Your Research Project. 2nd ed. Los Angeles: SAGE, 2014.
Cita MLA (9th ed.)
O'Leary, Zina. The Essential Guide to Doing Your Research Project. 2nd ed. SAGE, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.