William K. Hartmann Related books Astronomy Cengage Learning • 1997 Desert Heart: Chronicles of the Sonoran Desert Motorbooks Intl • 1989 Mars Underground St Martins Pr • 1997 Mars Underground Tor Books • 1999 Moons and Planets Thomson Learning • 1999 The History of Earth: An Illustrated Chronicle of an Evolving Planet Workman Pub Co The History of the Earth: An Illustrated Chronicle of Our Planet Workman Pub Co • 1991