Princeton University Press, 1997
You may wish to request a free examination copy. You can also order the paperback (ISBN 0-691-01240-7) or hardcover (ISBN 0-691-01241-5) over the web. Here also is a list of errata to the text; the original data used in the book are available for Unix, and Windows NT.
You can also read a scholarly review and an article from the New York Times, and another from the Boston Globe, about this book. This book won the Gosnell Prize for the best methodological work in political science in the preceeding year, and was listed as one of the Breakthrough Books in Geography; the accompanying sofware won the APSA Research Software Award).