Here is a list of material which may be useful in your presentation:

• One page summary of PRB-1
• Public Law 103-408
  Recognizing the achievements of amateurs and to establish support for such amateurs as national policy
• FCC letters concerning potential of interference
  These letters are very useful educating local authorities that regulation of interference is entirely an FCC matter and local governments have no jurisdiction.
• Antenna Height and Communications Effectiveness
  Second Edition, by R. Dean Straw, N6BV, and Jerry Hall, K1TD.
• Chronological list of landmark Amateur Radio cases
• What is Amateur Radio and Why is it a Community Resource?
  A Presentation for Non-Amateurs
• "Ghost in the Computer: Radio Frequency Interference and the Doctrine of Federal Preemption" by Ralph Brock, W5MV
• Note: Reasonable Accommodation of Amateur Radio Communications by Zoning Authorities: The FCC's PRB-1 Preemption, 37 Conn. L. Rev. 321 (2004) by Brennan T. Price
• PRB-1 and CC&Rs
  What Should I Do Now? - May 2007 QST

Note:

Additional material which is useful in explaining what Amateur Radio is to non-amateurs can be found on the ARRL web site.

FCC Letters Affirming PRB-1

Here is a letter from the FCC  to a New York assemblyman affirming PRB-1 and how it applies to amateurs. Other eaxmples of FCC letters.

• The "Pettit letter" was written to ARRL General Counsel Chris Imlay concerning an ordinance in Pierre, SD that sought to regulate interference. It shows that the local governments can't regulate interference since only the FCC can.
• The "Haller letter" was written by the FCC on behalf of an amateur whose application for a variance that was denied based on possible interference to home entertainment equipment. This letter also states that the higher the antenna, the less potential for interference to home entertainment equipment.
• The "McNamara letter" which was written to the neighbor of a ham who insisted that the FCC laws on interference were too lenient and should be strengthened. The FCC explained to the non-amateur that the current interference regulations were adequate and should not be changed.
• The "Smith letter" Re: Ordinance Regulating Radio Frequence Interference

The ARRL's FCC Rule Book; Antenna Zoning for the Radio Amateur

The ARRL's FCC Rule Book and Antenna Zoning for the Radio Amateur (by Fred Hopengarten, K1VR) are excellent reference publicatons for amateurs faced with zoning difficulties. Both can be ordered on-line from Amateur Radio dealers around the country.