Gaya APA

Wassel, J, L., Kutie, R, C. (1987). Office Systems Supervision: concepts and applications . New York: John Wiley & Sons, Inc.

Gaya MLA

Wassel, Joanna, L.., Kutie, Rita, C.. "Office Systems Supervision: concepts and applications". New York: John Wiley & Sons, Inc, 1987. Text.