2010 - Travertine (Paperback) → Hardcover ISBN-13: 9789048168910 ISBN-10: 9048168910 Genre: Science & Math ? 2005 - Travertine (Hardcover) → Paperback ISBN-13: 9781402035234 ISBN-10: 1402035233 Genres: Science & Math, Engineering & Transportation ? 1984 - Introduction to Freshwater Algae (Paperback) → Paperback ISBN-13: 9780855461430 ISBN-10: 0855461438 Genres: Science & Math, Outdoors & Nature ? The Ecology of Cowside Beck a Tributary of the River Skirfare in Yorkshire [Occasional Publications] (Other) |