Gaya APA

Halverson, R, K, C. (2017). Mapping leadership the tasks that matter for improving teaching and learnig in schools . America: Jossey-Bass A wiley Brand.

Gaya MLA

Halverson, Richard., Kelley,, Carolyn.. "Mapping leadership the tasks that matter for improving teaching and learnig in schools". America: Jossey-Bass A wiley Brand, 2017. Text.