Mars and how to observe itde Peter GregoMateriasObservers' manualsPopular worksMars (planet)Ediciones (1)Mars and how to observe it (2012)Springer · inglés · ISBN 9781461423010Más obras de Peter GregoGalileo and 400 years of telescopic astronomyAstronomical CybersketchingCornwalls Strangest Tales Extraordinary But True Stories