Gill, J., Johnson, P., & Clark, M. Research methods for managers (4th ed.).
Cita Chicago (17th ed.)Gill, John, Phil Johnson, i Murray Clark. Research Methods for Managers. 4th ed.
Cita MLA (8th ed.)Gill, John, et al. Research Methods for Managers. 4th ed.
Atenció: Aquestes cites poden no estar 100% correctes.