APA Style

Biernatt, J, E., Certo, S, C. (2008). Supervision concepts & skill-building (6th. ed.). New York: McGraw-Hill/Irwin.

MLA Style

Biernatt, John, E.., Certo, Samuel, C.. "Supervision concepts & skill-building". 6th. ed. New York: McGraw-Hill/Irwin, 2008. Text.