Gaya APA

Sergiovanni, T, J., Starratt, R, J. (2002). Supervision: a redefinition (7th. Ed). Boston: McGraw-Hill.

Gaya MLA

Sergiovanni, Thomas, J., Starratt, Robert, J.. "Supervision: a redefinition". 7th. Ed Boston: McGraw-Hill, 2002. Text.