Leithwood, K., & Steinbach Rosanne. (1995). Expert Problem solving: Evidence from school and district leaders. State University of New York Prees.
Lua i Stíl Chicago (17ú heag.)Leithwood, Kenneth, agus Steinbach Rosanne. Expert Problem Solving: Evidence from School and District Leaders. Albany, Estados Unidos: State University of New York Prees, 1995.
Lua MLA (9ú heag.)Leithwood, Kenneth, agus Steinbach Rosanne. Expert Problem Solving: Evidence from School and District Leaders. State University of New York Prees, 1995.
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