APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

O'Leary, Zina. The Essential Guide to Doing Your Research Project. [2nd ed.]. Los Angeles: Sage Publications, 2010.

MLA (9th ed.) Citation

O'Leary, Zina. The Essential Guide to Doing Your Research Project. [2nd ed.]. Sage Publications, 2010.