Leithwood, K., & Steinbach Rosanne. (1995). Expert Problem solving: Evidence from school and district leaders. State University of New York Prees.

Leithwood, Kenneth, and Steinbach Rosanne. Expert Problem Solving: Evidence from School and District Leaders. Albany, Estados Unidos: State University of New York Prees, 1995.

Leithwood, Kenneth, and Steinbach Rosanne. Expert Problem Solving: Evidence from School and District Leaders. State University of New York Prees, 1995.