Dyfyniad APA

Sergiovanni, T. J. (1993). Supervision: A redefinition (5th.ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Sergiovanni, Thomas J. Supervision: A Redefinition. 5th.ed. New York: McGraw-Hill, 1993.

Dyfyniad MLA

Sergiovanni, Thomas J. Supervision: A Redefinition. 5th.ed. McGraw-Hill, 1993.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.