SpringerLink (Online service), Moos, L., Johansson, O., & Day, C. (2011). How school principals sustain success over time: International perspectives. Springer Netherlands.
Cita Chicago (17th ed.)SpringerLink (Online service), Lejf Moos, Olof Johansson, i Christopher Day. How School Principals Sustain Success over Time: International Perspectives. Dordrecht: Springer Netherlands, 2011.
Cita MLA (9th ed.)SpringerLink (Online service), et al. How School Principals Sustain Success over Time: International Perspectives. Springer Netherlands, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.