"The Smithsonian Book of Mars;" Konecky & Konecky: Old Saybrook, CT, ISBN 978-1-58834-074-0*Carr, Michael, H. (2006).
"The Smithsonian Book of Mars;" Konecky & Konecky: Old Saybrook, CT, ISBN 978-1-58834-074-0* Carr, Michael, H. (2006).