Dear experts

I am trying to design a little database for our community. I am not a professional. I bought « Data model resource book » written by Len Silverston, without the CD ; I cannot afford the price as what I do is for free. Even the book is expensive outside of U.S.A.

Only the chapter untitled « people and orhanizations » interest me. Can someone give me a hand and send me a conceptual or physical model derived from this chapter ? I cannot figure out how to do that.

I have access to Powerdesigner and Visio. Any help will get me started and be greatly appreciated.