For more information about designing an effective contracting system, consult the list of references at the end of the paper.
The following books are particularly informative guides to contracting out:
E. S. Savas, Privatization: The Key to Better Government (Chatham, New Jersey: Chatham Publishers, 1987).
John Marlin, ed., Contracting Municipal Services (New York: Ronald Press, 1984).
John Rehfuss, Contracting Out in Government (San Francisco: Jossey-Bass, 1989).
Edward Wesemann, Contracting for City Services (Pittsburgh: Innovations Press, 1981).
John D. Donahue, The Privatization Decision (Basic Books: 1989).