Gaya APA

Lewis, C, W., Gilman, S, C. (2005). THE ETHICS CHALLENGE IN PUBLIC SERVICE: A Problem-Solving Guide (2). USA: Jossey-Bass.

Gaya MLA

Lewis, Carol, W.., Gilman, Stuart, C.. "THE ETHICS CHALLENGE IN PUBLIC SERVICE: A Problem-Solving Guide". 2 USA: Jossey-Bass, 2005. Text.