Gaya APA

Sergiovanni, T, J., Starratt, R, J. (1993). Supervision : a redefinition . New York: McGraw-Hill.

Gaya MLA

Sergiovanni, Thomas, J.., Starratt, Robert, J.. "Supervision : a redefinition". New York: McGraw-Hill, 1993. Buku/Printed Material.