APA Style
Hammond, L, D. et al (2010).
Preparing Principals for a Changing World: Lessons from Effective School Leadership Programs .
San Francisco:
Jossey Bass.
MLA Style
Hammond, Linda, Darling. et al.
"Preparing Principals for a Changing World: Lessons from Effective School Leadership Programs".
San Francisco:
Jossey Bass,
2010.
BG.