APA استشهاد

O'Leary, Z. (2010). The essential guide to doing your research project (2nd edition.). Sage.

استشهاد بنمط شيكاغو

O'Leary, Zina. The Essential Guide to Doing Your Research Project. 2nd edition. New Delhi: Sage, 2010.

MLA استشهاد

O'Leary, Zina. The Essential Guide to Doing Your Research Project. 2nd edition. Sage, 2010.