Coba jelasin Buku dari Guillermo Gonzalez dong

The Privileged Planet: How Our Place in the Cosmos Is Designed for Discovery (co-author Jay Richards), Regnery Publishing, Inc., Washington D.C., March 2004, ISBN 0-89526-065-4

Observational Astronomy (co-authors D. Scott Birney, David Oesper) Cambridge University Press, 2006, ISBN 978-0-521-85370-5