A really neat way to look at some great books is just to walk into a local used or rare books store and brows through the art/architecture/planning section(s). Yesterday for $4 I bought a book entitled Mixed Land Uses from 35 years ago, as well as another book entitled "Renderings" from the same time, from the library of SOM, with a front cover picture of the 'health education and welfare center', architect Paul Rudolph, in Boston. I've googled it and cannot see any pictures of it or any reference to it, so I'm assuming it was never built. Its a mid rise skyscraper. Looks typical for its architectural era. All of the designs in the book are by winners of the Birch Burdette Long Memorial Prize.